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Finding the Fourth Proportional to 359,137.59, 538,706.38 and 122,482.32

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Solution

The fourth proportional to 359,137.59, 538,706.38 and 122,482.32 is: 183,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,137.59 : 538,706.38 = 122,482.32 : x
  2. Step 2: Convert to fraction form
    359,137.59/538,706.38 = 122,482.32/x
  3. Step 3: Cross multiply
    359,137.59x = 538,706.38 × 122,482.32
  4. Step 4: Simplify right side
    359,137.59x = 65,982,007,221.20
  5. Step 5: Solve for x
    x = 65,982,007,221.20/359,137.59
  6. Step 6: Final answer
    x = 183,723.48

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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.