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Finding the Fourth Proportional to 156,882.45, 216,502.56 and 96,488.58

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Solution

The fourth proportional to 156,882.45, 216,502.56 and 96,488.58 is: 133,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,882.45 : 216,502.56 = 96,488.58 : x
  2. Step 2: Convert to fraction form
    156,882.45/216,502.56 = 96,488.58/x
  3. Step 3: Cross multiply
    156,882.45x = 216,502.56 × 96,488.58
  4. Step 4: Simplify right side
    156,882.45x = 20,890,024,580.76
  5. Step 5: Solve for x
    x = 20,890,024,580.76/156,882.45
  6. Step 6: Final answer
    x = 133,157.18

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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.