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Finding the Fourth Proportional to 99,162.16, 136,793.08 and 63,314.48

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Solution

The fourth proportional to 99,162.16, 136,793.08 and 63,314.48 is: 87,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,162.16 : 136,793.08 = 63,314.48 : x
  2. Step 2: Convert to fraction form
    99,162.16/136,793.08 = 63,314.48/x
  3. Step 3: Cross multiply
    99,162.16x = 136,793.08 × 63,314.48
  4. Step 4: Simplify right side
    99,162.16x = 8,660,982,727.80
  5. Step 5: Solve for x
    x = 8,660,982,727.80/99,162.16
  6. Step 6: Final answer
    x = 87,341.61

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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.