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Finding the Fourth Proportional to 62,304.98, 85,979.22 and 57,289.46

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Solution

The fourth proportional to 62,304.98, 85,979.22 and 57,289.46 is: 79,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,304.98 : 85,979.22 = 57,289.46 : x
  2. Step 2: Convert to fraction form
    62,304.98/85,979.22 = 57,289.46/x
  3. Step 3: Cross multiply
    62,304.98x = 85,979.22 × 57,289.46
  4. Step 4: Simplify right side
    62,304.98x = 4,925,703,085.02
  5. Step 5: Solve for x
    x = 4,925,703,085.02/62,304.98
  6. Step 6: Final answer
    x = 79,057.94

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Why These Related Problems?

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