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Finding the Fourth Proportional to 74,293.98, 102,437.91 and 60,815.58

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Solution

The fourth proportional to 74,293.98, 102,437.91 and 60,815.58 is: 83,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,293.98 : 102,437.91 = 60,815.58 : x
  2. Step 2: Convert to fraction form
    74,293.98/102,437.91 = 60,815.58/x
  3. Step 3: Cross multiply
    74,293.98x = 102,437.91 × 60,815.58
  4. Step 4: Simplify right side
    74,293.98x = 6,229,820,910.64
  5. Step 5: Solve for x
    x = 6,229,820,910.64/74,293.98
  6. Step 6: Final answer
    x = 83,853.64

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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.