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Finding the Fourth Proportional to 356,685.90, 534,873.25 and 134,914.38

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Solution

The fourth proportional to 356,685.90, 534,873.25 and 134,914.38 is: 202,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,685.90 : 534,873.25 = 134,914.38 : x
  2. Step 2: Convert to fraction form
    356,685.90/534,873.25 = 134,914.38/x
  3. Step 3: Cross multiply
    356,685.90x = 534,873.25 × 134,914.38
  4. Step 4: Simplify right side
    356,685.90x = 72,162,092,902.34
  5. Step 5: Solve for x
    x = 72,162,092,902.34/356,685.90
  6. Step 6: Final answer
    x = 202,312.72

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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.