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Finding the Fourth Proportional to 75,442.92, 104,124.06 and 43,631.16

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Solution

The fourth proportional to 75,442.92, 104,124.06 and 43,631.16 is: 60,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,442.92 : 104,124.06 = 43,631.16 : x
  2. Step 2: Convert to fraction form
    75,442.92/104,124.06 = 43,631.16/x
  3. Step 3: Cross multiply
    75,442.92x = 104,124.06 × 43,631.16
  4. Step 4: Simplify right side
    75,442.92x = 4,543,053,521.71
  5. Step 5: Solve for x
    x = 4,543,053,521.71/75,442.92
  6. Step 6: Final answer
    x = 60,218.42

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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.