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Finding the Fourth Proportional to 288,132.69, 432,263.25 and 88,470.48

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Solution

The fourth proportional to 288,132.69, 432,263.25 and 88,470.48 is: 132,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,132.69 : 432,263.25 = 88,470.48 : x
  2. Step 2: Convert to fraction form
    288,132.69/432,263.25 = 88,470.48/x
  3. Step 3: Cross multiply
    288,132.69x = 432,263.25 × 88,470.48
  4. Step 4: Simplify right side
    288,132.69x = 38,242,537,213.86
  5. Step 5: Solve for x
    x = 38,242,537,213.86/288,132.69
  6. Step 6: Final answer
    x = 132,725.44

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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.