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Finding the Fourth Proportional to 207,121.59, 310,679.22 and 93,188.91

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Solution

The fourth proportional to 207,121.59, 310,679.22 and 93,188.91 is: 139,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,121.59 : 310,679.22 = 93,188.91 : x
  2. Step 2: Convert to fraction form
    207,121.59/310,679.22 = 93,188.91/x
  3. Step 3: Cross multiply
    207,121.59x = 310,679.22 × 93,188.91
  4. Step 4: Simplify right side
    207,121.59x = 28,951,857,871.45
  5. Step 5: Solve for x
    x = 28,951,857,871.45/207,121.59
  6. Step 6: Final answer
    x = 139,781.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.