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Finding the Fourth Proportional to 359,329.20, 538,918.20 and 181,669.20

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Solution

The fourth proportional to 359,329.20, 538,918.20 and 181,669.20 is: 272,465.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,329.20 : 538,918.20 = 181,669.20 : x
  2. Step 2: Convert to fraction form
    359,329.20/538,918.20 = 181,669.20/x
  3. Step 3: Cross multiply
    359,329.20x = 538,918.20 × 181,669.20
  4. Step 4: Simplify right side
    359,329.20x = 97,904,838,259.44
  5. Step 5: Solve for x
    x = 97,904,838,259.44/359,329.20
  6. Step 6: Final answer
    x = 272,465.58

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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.