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Finding the Fourth Proportional to 126,497.84, 189,874.84 and 63,363.20

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Solution

The fourth proportional to 126,497.84, 189,874.84 and 63,363.20 is: 95,108.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,497.84 : 189,874.84 = 63,363.20 : x
  2. Step 2: Convert to fraction form
    126,497.84/189,874.84 = 63,363.20/x
  3. Step 3: Cross multiply
    126,497.84x = 189,874.84 × 63,363.20
  4. Step 4: Simplify right side
    126,497.84x = 12,031,077,461.89
  5. Step 5: Solve for x
    x = 12,031,077,461.89/126,497.84
  6. Step 6: Final answer
    x = 95,108.96

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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.