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Finding the Fourth Proportional to 74,587.61, 102,930.92 and 41,053.61

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Solution

The fourth proportional to 74,587.61, 102,930.92 and 41,053.61 is: 56,653.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,587.61 : 102,930.92 = 41,053.61 : x
  2. Step 2: Convert to fraction form
    74,587.61/102,930.92 = 41,053.61/x
  3. Step 3: Cross multiply
    74,587.61x = 102,930.92 × 41,053.61
  4. Step 4: Simplify right side
    74,587.61x = 4,225,685,126.70
  5. Step 5: Solve for x
    x = 4,225,685,126.70/74,587.61
  6. Step 6: Final answer
    x = 56,653.99

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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.