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Finding the Fourth Proportional to 502,687.40, 754,140.45 and 165,670.70

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Solution

The fourth proportional to 502,687.40, 754,140.45 and 165,670.70 is: 248,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,687.40 : 754,140.45 = 165,670.70 : x
  2. Step 2: Convert to fraction form
    502,687.40/754,140.45 = 165,670.70/x
  3. Step 3: Cross multiply
    502,687.40x = 754,140.45 × 165,670.70
  4. Step 4: Simplify right side
    502,687.40x = 124,938,976,249.82
  5. Step 5: Solve for x
    x = 124,938,976,249.82/502,687.40
  6. Step 6: Final answer
    x = 248,542.09

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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.