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Finding the Fourth Proportional to 62,258.50, 85,916.73 and 39,902.50

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Solution

The fourth proportional to 62,258.50, 85,916.73 and 39,902.50 is: 55,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,258.50 : 85,916.73 = 39,902.50 : x
  2. Step 2: Convert to fraction form
    62,258.50/85,916.73 = 39,902.50/x
  3. Step 3: Cross multiply
    62,258.50x = 85,916.73 × 39,902.50
  4. Step 4: Simplify right side
    62,258.50x = 3,428,292,318.83
  5. Step 5: Solve for x
    x = 3,428,292,318.83/62,258.50
  6. Step 6: Final answer
    x = 55,065.45

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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.