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Finding the Fourth Proportional to 359,908.49, 539,807.38 and 120,026.59

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Solution

The fourth proportional to 359,908.49, 539,807.38 and 120,026.59 is: 180,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,908.49 : 539,807.38 = 120,026.59 : x
  2. Step 2: Convert to fraction form
    359,908.49/539,807.38 = 120,026.59/x
  3. Step 3: Cross multiply
    359,908.49x = 539,807.38 × 120,026.59
  4. Step 4: Simplify right side
    359,908.49x = 64,791,239,078.23
  5. Step 5: Solve for x
    x = 64,791,239,078.23/359,908.49
  6. Step 6: Final answer
    x = 180,021.42

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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.