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Finding the Fourth Proportional to 359,294.12, 538,996.54 and 122,581.62

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Solution

The fourth proportional to 359,294.12, 538,996.54 and 122,581.62 is: 183,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,294.12 : 538,996.54 = 122,581.62 : x
  2. Step 2: Convert to fraction form
    359,294.12/538,996.54 = 122,581.62/x
  3. Step 3: Cross multiply
    359,294.12x = 538,996.54 × 122,581.62
  4. Step 4: Simplify right side
    359,294.12x = 66,071,069,047.59
  5. Step 5: Solve for x
    x = 66,071,069,047.59/359,294.12
  6. Step 6: Final answer
    x = 183,891.32

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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.