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Finding the Fourth Proportional to 176,649.76, 243,721.68 and 100,162.83

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Solution

The fourth proportional to 176,649.76, 243,721.68 and 100,162.83 is: 138,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,649.76 : 243,721.68 = 100,162.83 : x
  2. Step 2: Convert to fraction form
    176,649.76/243,721.68 = 100,162.83/x
  3. Step 3: Cross multiply
    176,649.76x = 243,721.68 × 100,162.83
  4. Step 4: Simplify right side
    176,649.76x = 24,411,853,213.69
  5. Step 5: Solve for x
    x = 24,411,853,213.69/176,649.76
  6. Step 6: Final answer
    x = 138,193.53

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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.