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Finding the Fourth Proportional to 61,571.68, 84,929.52 and 42,701.92

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Solution

The fourth proportional to 61,571.68, 84,929.52 and 42,701.92 is: 58,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,571.68 : 84,929.52 = 42,701.92 : x
  2. Step 2: Convert to fraction form
    61,571.68/84,929.52 = 42,701.92/x
  3. Step 3: Cross multiply
    61,571.68x = 84,929.52 × 42,701.92
  4. Step 4: Simplify right side
    61,571.68x = 3,626,653,568.68
  5. Step 5: Solve for x
    x = 3,626,653,568.68/61,571.68
  6. Step 6: Final answer
    x = 58,901.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.