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Finding the Fourth Proportional to 104,939.40, 147,283.80 and 104,939.40

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Solution

The fourth proportional to 104,939.40, 147,283.80 and 104,939.40 is: 147,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,939.40 : 147,283.80 = 104,939.40 : x
  2. Step 2: Convert to fraction form
    104,939.40/147,283.80 = 104,939.40/x
  3. Step 3: Cross multiply
    104,939.40x = 147,283.80 × 104,939.40
  4. Step 4: Simplify right side
    104,939.40x = 15,455,873,601.72
  5. Step 5: Solve for x
    x = 15,455,873,601.72/104,939.40
  6. Step 6: Final answer
    x = 147,283.80

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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.