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Finding the Fourth Proportional to 126,472.92, 189,802.91 and 59,913.19

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Solution

The fourth proportional to 126,472.92, 189,802.91 and 59,913.19 is: 89,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,472.92 : 189,802.91 = 59,913.19 : x
  2. Step 2: Convert to fraction form
    126,472.92/189,802.91 = 59,913.19/x
  3. Step 3: Cross multiply
    126,472.92x = 189,802.91 × 59,913.19
  4. Step 4: Simplify right side
    126,472.92x = 11,371,698,196.42
  5. Step 5: Solve for x
    x = 11,371,698,196.42/126,472.92
  6. Step 6: Final answer
    x = 89,914.10

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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.