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Finding the Fourth Proportional to 356,680.40, 535,044.90 and 113,502.20

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Solution

The fourth proportional to 356,680.40, 535,044.90 and 113,502.20 is: 170,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,680.40 : 535,044.90 = 113,502.20 : x
  2. Step 2: Convert to fraction form
    356,680.40/535,044.90 = 113,502.20/x
  3. Step 3: Cross multiply
    356,680.40x = 535,044.90 × 113,502.20
  4. Step 4: Simplify right side
    356,680.40x = 60,728,773,248.78
  5. Step 5: Solve for x
    x = 60,728,773,248.78/356,680.40
  6. Step 6: Final answer
    x = 170,261.03

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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.