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Finding the Fourth Proportional to 349,843.66, 524,432.88 and 136,748.15

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Solution

The fourth proportional to 349,843.66, 524,432.88 and 136,748.15 is: 204,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,843.66 : 524,432.88 = 136,748.15 : x
  2. Step 2: Convert to fraction form
    349,843.66/524,432.88 = 136,748.15/x
  3. Step 3: Cross multiply
    349,843.66x = 524,432.88 × 136,748.15
  4. Step 4: Simplify right side
    349,843.66x = 71,715,225,483.63
  5. Step 5: Solve for x
    x = 71,715,225,483.63/349,843.66
  6. Step 6: Final answer
    x = 204,992.21

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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.