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Finding the Fourth Proportional to 118,943.88, 178,398.46 and 34,681.40

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Solution

The fourth proportional to 118,943.88, 178,398.46 and 34,681.40 is: 52,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,943.88 : 178,398.46 = 34,681.40 : x
  2. Step 2: Convert to fraction form
    118,943.88/178,398.46 = 34,681.40/x
  3. Step 3: Cross multiply
    118,943.88x = 178,398.46 × 34,681.40
  4. Step 4: Simplify right side
    118,943.88x = 6,187,108,350.64
  5. Step 5: Solve for x
    x = 6,187,108,350.64/118,943.88
  6. Step 6: Final answer
    x = 52,017.04

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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.