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Finding the Fourth Proportional to 354,871.88, 532,391.72 and 114,985.38

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Solution

The fourth proportional to 354,871.88, 532,391.72 and 114,985.38 is: 172,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,871.88 : 532,391.72 = 114,985.38 : x
  2. Step 2: Convert to fraction form
    354,871.88/532,391.72 = 114,985.38/x
  3. Step 3: Cross multiply
    354,871.88x = 532,391.72 × 114,985.38
  4. Step 4: Simplify right side
    354,871.88x = 61,217,266,516.99
  5. Step 5: Solve for x
    x = 61,217,266,516.99/354,871.88
  6. Step 6: Final answer
    x = 172,505.26

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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.