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Finding the Fourth Proportional to 147,534,140.80, 206,850,128 and 147,534,140.80

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Solution

The fourth proportional to 147,534,140.80, 206,850,128 and 147,534,140.80 is: 206,850,128

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,534,140.80 : 206,850,128 = 147,534,140.80 : x
  2. Step 2: Convert to fraction form
    147,534,140.80/206,850,128 = 147,534,140.80/x
  3. Step 3: Cross multiply
    147,534,140.80x = 206,850,128 × 147,534,140.80
  4. Step 4: Simplify right side
    147,534,140.80x = 30,517,455,908,850,024
  5. Step 5: Solve for x
    x = 30,517,455,908,850,024/147,534,140.80
  6. Step 6: Final answer
    x = 206,850,128

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.