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Finding the Fourth Proportional to 359,979.12, 539,999.69 and 93,740.12

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Solution

The fourth proportional to 359,979.12, 539,999.69 and 93,740.12 is: 140,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,979.12 : 539,999.69 = 93,740.12 : x
  2. Step 2: Convert to fraction form
    359,979.12/539,999.69 = 93,740.12/x
  3. Step 3: Cross multiply
    359,979.12x = 539,999.69 × 93,740.12
  4. Step 4: Simplify right side
    359,979.12x = 50,619,635,740.56
  5. Step 5: Solve for x
    x = 50,619,635,740.56/359,979.12
  6. Step 6: Final answer
    x = 140,618.26

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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.