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Finding the Fourth Proportional to 359,492.10, 539,432.55 and 159,843.30

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Solution

The fourth proportional to 359,492.10, 539,432.55 and 159,843.30 is: 239,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,492.10 : 539,432.55 = 159,843.30 : x
  2. Step 2: Convert to fraction form
    359,492.10/539,432.55 = 159,843.30/x
  3. Step 3: Cross multiply
    359,492.10x = 539,432.55 × 159,843.30
  4. Step 4: Simplify right side
    359,492.10x = 86,224,678,919.42
  5. Step 5: Solve for x
    x = 86,224,678,919.42/359,492.10
  6. Step 6: Final answer
    x = 239,851.39

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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.