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Finding the Fourth Proportional to 359,009.77, 538,578.52 and 119,138.04

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Solution

The fourth proportional to 359,009.77, 538,578.52 and 119,138.04 is: 178,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,009.77 : 538,578.52 = 119,138.04 : x
  2. Step 2: Convert to fraction form
    359,009.77/538,578.52 = 119,138.04/x
  3. Step 3: Cross multiply
    359,009.77x = 538,578.52 × 119,138.04
  4. Step 4: Simplify right side
    359,009.77x = 64,165,188,961.06
  5. Step 5: Solve for x
    x = 64,165,188,961.06/359,009.77
  6. Step 6: Final answer
    x = 178,728.25

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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.