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Finding the Fourth Proportional to 376,717.12, 565,013.56 and 124,000.90

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Solution

The fourth proportional to 376,717.12, 565,013.56 and 124,000.90 is: 185,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,717.12 : 565,013.56 = 124,000.90 : x
  2. Step 2: Convert to fraction form
    376,717.12/565,013.56 = 124,000.90/x
  3. Step 3: Cross multiply
    376,717.12x = 565,013.56 × 124,000.90
  4. Step 4: Simplify right side
    376,717.12x = 70,062,189,952.20
  5. Step 5: Solve for x
    x = 70,062,189,952.20/376,717.12
  6. Step 6: Final answer
    x = 185,980.90

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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.