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Finding the Fourth Proportional to 359,127.64, 538,850.15 and 188,308.56

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Solution

The fourth proportional to 359,127.64, 538,850.15 and 188,308.56 is: 282,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,127.64 : 538,850.15 = 188,308.56 : x
  2. Step 2: Convert to fraction form
    359,127.64/538,850.15 = 188,308.56/x
  3. Step 3: Cross multiply
    359,127.64x = 538,850.15 × 188,308.56
  4. Step 4: Simplify right side
    359,127.64x = 101,470,097,057.97
  5. Step 5: Solve for x
    x = 101,470,097,057.97/359,127.64
  6. Step 6: Final answer
    x = 282,546.05

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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.