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Finding the Fourth Proportional to 347,905.66, 521,863.41 and 98,587.66

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Solution

The fourth proportional to 347,905.66, 521,863.41 and 98,587.66 is: 147,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,905.66 : 521,863.41 = 98,587.66 : x
  2. Step 2: Convert to fraction form
    347,905.66/521,863.41 = 98,587.66/x
  3. Step 3: Cross multiply
    347,905.66x = 521,863.41 × 98,587.66
  4. Step 4: Simplify right side
    347,905.66x = 51,449,292,431.52
  5. Step 5: Solve for x
    x = 51,449,292,431.52/347,905.66
  6. Step 6: Final answer
    x = 147,882.88

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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.