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Finding the Fourth Proportional to 162,712.82, 224,385.92 and 126,889.76

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Solution

The fourth proportional to 162,712.82, 224,385.92 and 126,889.76 is: 174,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,712.82 : 224,385.92 = 126,889.76 : x
  2. Step 2: Convert to fraction form
    162,712.82/224,385.92 = 126,889.76/x
  3. Step 3: Cross multiply
    162,712.82x = 224,385.92 × 126,889.76
  4. Step 4: Simplify right side
    162,712.82x = 28,472,275,536.18
  5. Step 5: Solve for x
    x = 28,472,275,536.18/162,712.82
  6. Step 6: Final answer
    x = 174,984.83

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1.5x scale

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.