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Finding the Fourth Proportional to 59,055.93, 81,531.09 and 38,905.47

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Solution

The fourth proportional to 59,055.93, 81,531.09 and 38,905.47 is: 53,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,055.93 : 81,531.09 = 38,905.47 : x
  2. Step 2: Convert to fraction form
    59,055.93/81,531.09 = 38,905.47/x
  3. Step 3: Cross multiply
    59,055.93x = 81,531.09 × 38,905.47
  4. Step 4: Simplify right side
    59,055.93x = 3,172,005,376.06
  5. Step 5: Solve for x
    x = 3,172,005,376.06/59,055.93
  6. Step 6: Final answer
    x = 53,711.89

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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.