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Finding the Fourth Proportional to 236,242.71, 354,384.11 and 86,446.91

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Solution

The fourth proportional to 236,242.71, 354,384.11 and 86,446.91 is: 129,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,242.71 : 354,384.11 = 86,446.91 : x
  2. Step 2: Convert to fraction form
    236,242.71/354,384.11 = 86,446.91/x
  3. Step 3: Cross multiply
    236,242.71x = 354,384.11 × 86,446.91
  4. Step 4: Simplify right side
    236,242.71x = 30,635,412,364.68
  5. Step 5: Solve for x
    x = 30,635,412,364.68/236,242.71
  6. Step 6: Final answer
    x = 129,677.70

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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.