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Finding the Fourth Proportional to 58,734.50, 81,120.88 and 38,681.02

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Solution

The fourth proportional to 58,734.50, 81,120.88 and 38,681.02 is: 53,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,734.50 : 81,120.88 = 38,681.02 : x
  2. Step 2: Convert to fraction form
    58,734.50/81,120.88 = 38,681.02/x
  3. Step 3: Cross multiply
    58,734.50x = 81,120.88 × 38,681.02
  4. Step 4: Simplify right side
    58,734.50x = 3,137,838,381.70
  5. Step 5: Solve for x
    x = 3,137,838,381.70/58,734.50
  6. Step 6: Final answer
    x = 53,424.11

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