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Finding the Fourth Proportional to 62,869.80, 94,304.70 and 54,316.20

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Solution

The fourth proportional to 62,869.80, 94,304.70 and 54,316.20 is: 81,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,869.80 : 94,304.70 = 54,316.20 : x
  2. Step 2: Convert to fraction form
    62,869.80/94,304.70 = 54,316.20/x
  3. Step 3: Cross multiply
    62,869.80x = 94,304.70 × 54,316.20
  4. Step 4: Simplify right side
    62,869.80x = 5,122,272,946.14
  5. Step 5: Solve for x
    x = 5,122,272,946.14/62,869.80
  6. Step 6: Final answer
    x = 81,474.30

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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.