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Finding the Fourth Proportional to 137,865.40, 192,617.90 and 137,865.40

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Solution

The fourth proportional to 137,865.40, 192,617.90 and 137,865.40 is: 192,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,865.40 : 192,617.90 = 137,865.40 : x
  2. Step 2: Convert to fraction form
    137,865.40/192,617.90 = 137,865.40/x
  3. Step 3: Cross multiply
    137,865.40x = 192,617.90 × 137,865.40
  4. Step 4: Simplify right side
    137,865.40x = 26,555,343,830.66
  5. Step 5: Solve for x
    x = 26,555,343,830.66/137,865.40
  6. Step 6: Final answer
    x = 192,617.90

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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.