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Finding the Fourth Proportional to 109,412.76, 151,001.68 and 63,482.52

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Solution

The fourth proportional to 109,412.76, 151,001.68 and 63,482.52 is: 87,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,412.76 : 151,001.68 = 63,482.52 : x
  2. Step 2: Convert to fraction form
    109,412.76/151,001.68 = 63,482.52/x
  3. Step 3: Cross multiply
    109,412.76x = 151,001.68 × 63,482.52
  4. Step 4: Simplify right side
    109,412.76x = 9,585,967,170.63
  5. Step 5: Solve for x
    x = 9,585,967,170.63/109,412.76
  6. Step 6: Final answer
    x = 87,612.88

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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.