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Finding the Fourth Proportional to 375,781.05, 563,531.64 and 151,065.85

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Solution

The fourth proportional to 375,781.05, 563,531.64 and 151,065.85 is: 226,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,781.05 : 563,531.64 = 151,065.85 : x
  2. Step 2: Convert to fraction form
    375,781.05/563,531.64 = 151,065.85/x
  3. Step 3: Cross multiply
    375,781.05x = 563,531.64 × 151,065.85
  4. Step 4: Simplify right side
    375,781.05x = 85,130,386,198.49
  5. Step 5: Solve for x
    x = 85,130,386,198.49/375,781.05
  6. Step 6: Final answer
    x = 226,542.52

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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.