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Finding the Fourth Proportional to 359,908.56, 539,807.48 and 120,026.68

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Solution

The fourth proportional to 359,908.56, 539,807.48 and 120,026.68 is: 180,021.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,908.56 : 539,807.48 = 120,026.68 : x
  2. Step 2: Convert to fraction form
    359,908.56/539,807.48 = 120,026.68/x
  3. Step 3: Cross multiply
    359,908.56x = 539,807.48 × 120,026.68
  4. Step 4: Simplify right side
    359,908.56x = 64,791,299,663.57
  5. Step 5: Solve for x
    x = 64,791,299,663.57/359,908.56
  6. Step 6: Final answer
    x = 180,021.56

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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.