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Finding the Fourth Proportional to 347,901.66, 521,857.41 and 98,583.66

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Solution

The fourth proportional to 347,901.66, 521,857.41 and 98,583.66 is: 147,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,901.66 : 521,857.41 = 98,583.66 : x
  2. Step 2: Convert to fraction form
    347,901.66/521,857.41 = 98,583.66/x
  3. Step 3: Cross multiply
    347,901.66x = 521,857.41 × 98,583.66
  4. Step 4: Simplify right side
    347,901.66x = 51,446,613,475.92
  5. Step 5: Solve for x
    x = 51,446,613,475.92/347,901.66
  6. Step 6: Final answer
    x = 147,876.88

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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.