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Finding the Fourth Proportional to 367,701.55, 551,410.17 and 143,031.65

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Solution

The fourth proportional to 367,701.55, 551,410.17 and 143,031.65 is: 214,492.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,701.55 : 551,410.17 = 143,031.65 : x
  2. Step 2: Convert to fraction form
    367,701.55/551,410.17 = 143,031.65/x
  3. Step 3: Cross multiply
    367,701.55x = 551,410.17 × 143,031.65
  4. Step 4: Simplify right side
    367,701.55x = 78,869,103,148.46
  5. Step 5: Solve for x
    x = 78,869,103,148.46/367,701.55
  6. Step 6: Final answer
    x = 214,492.17

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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.