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Finding the Fourth Proportional to 236,326.32, 354,385.80 and 86,527.80

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Solution

The fourth proportional to 236,326.32, 354,385.80 and 86,527.80 is: 129,753.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,326.32 : 354,385.80 = 86,527.80 : x
  2. Step 2: Convert to fraction form
    236,326.32/354,385.80 = 86,527.80/x
  3. Step 3: Cross multiply
    236,326.32x = 354,385.80 × 86,527.80
  4. Step 4: Simplify right side
    236,326.32x = 30,664,223,625.24
  5. Step 5: Solve for x
    x = 30,664,223,625.24/236,326.32
  6. Step 6: Final answer
    x = 129,753.74

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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.