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Finding the Fourth Proportional to 74,693.53, 112,073.39 and 39,146.39

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Solution

The fourth proportional to 74,693.53, 112,073.39 and 39,146.39 is: 58,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,693.53 : 112,073.39 = 39,146.39 : x
  2. Step 2: Convert to fraction form
    74,693.53/112,073.39 = 39,146.39/x
  3. Step 3: Cross multiply
    74,693.53x = 112,073.39 × 39,146.39
  4. Step 4: Simplify right side
    74,693.53x = 4,387,269,011.61
  5. Step 5: Solve for x
    x = 4,387,269,011.61/74,693.53
  6. Step 6: Final answer
    x = 58,736.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.