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Finding the Fourth Proportional to 359,080.52, 538,634.40 and 134,417.30

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Solution

The fourth proportional to 359,080.52, 538,634.40 and 134,417.30 is: 201,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,080.52 : 538,634.40 = 134,417.30 : x
  2. Step 2: Convert to fraction form
    359,080.52/538,634.40 = 134,417.30/x
  3. Step 3: Cross multiply
    359,080.52x = 538,634.40 × 134,417.30
  4. Step 4: Simplify right side
    359,080.52x = 72,401,781,735.12
  5. Step 5: Solve for x
    x = 72,401,781,735.12/359,080.52
  6. Step 6: Final answer
    x = 201,631.05

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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.