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Finding the Fourth Proportional to 250,209.30, 374,803.65 and 155,147.70

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Solution

The fourth proportional to 250,209.30, 374,803.65 and 155,147.70 is: 232,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,209.30 : 374,803.65 = 155,147.70 : x
  2. Step 2: Convert to fraction form
    250,209.30/374,803.65 = 155,147.70/x
  3. Step 3: Cross multiply
    250,209.30x = 374,803.65 × 155,147.70
  4. Step 4: Simplify right side
    250,209.30x = 58,149,924,249.11
  5. Step 5: Solve for x
    x = 58,149,924,249.11/250,209.30
  6. Step 6: Final answer
    x = 232,405.13

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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.