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Finding the Fourth Proportional to 356,747.70, 535,121.55 and 238,475.70

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Solution

The fourth proportional to 356,747.70, 535,121.55 and 238,475.70 is: 357,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,747.70 : 535,121.55 = 238,475.70 : x
  2. Step 2: Convert to fraction form
    356,747.70/535,121.55 = 238,475.70/x
  3. Step 3: Cross multiply
    356,747.70x = 535,121.55 × 238,475.70
  4. Step 4: Simplify right side
    356,747.70x = 127,613,486,221.34
  5. Step 5: Solve for x
    x = 127,613,486,221.34/356,747.70
  6. Step 6: Final answer
    x = 357,713.55

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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.