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Finding the Fourth Proportional to 62,772.66, 94,158.78 and 39,415.50

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Solution

The fourth proportional to 62,772.66, 94,158.78 and 39,415.50 is: 59,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,772.66 : 94,158.78 = 39,415.50 : x
  2. Step 2: Convert to fraction form
    62,772.66/94,158.78 = 39,415.50/x
  3. Step 3: Cross multiply
    62,772.66x = 94,158.78 × 39,415.50
  4. Step 4: Simplify right side
    62,772.66x = 3,711,315,393.09
  5. Step 5: Solve for x
    x = 3,711,315,393.09/62,772.66
  6. Step 6: Final answer
    x = 59,123.12

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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.