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Finding the Fourth Proportional to 113,416, 156,514.08 and 63,115.04

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Solution

The fourth proportional to 113,416, 156,514.08 and 63,115.04 is: 87,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,416 : 156,514.08 = 63,115.04 : x
  2. Step 2: Convert to fraction form
    113,416/156,514.08 = 63,115.04/x
  3. Step 3: Cross multiply
    113,416x = 156,514.08 × 63,115.04
  4. Step 4: Simplify right side
    113,416x = 9,878,392,419.76
  5. Step 5: Solve for x
    x = 9,878,392,419.76/113,416
  6. Step 6: Final answer
    x = 87,098.76

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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.