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Finding the Fourth Proportional to 359,079.52, 538,632.90 and 134,416.30

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Solution

The fourth proportional to 359,079.52, 538,632.90 and 134,416.30 is: 201,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,079.52 : 538,632.90 = 134,416.30 : x
  2. Step 2: Convert to fraction form
    359,079.52/538,632.90 = 134,416.30/x
  3. Step 3: Cross multiply
    359,079.52x = 538,632.90 × 134,416.30
  4. Step 4: Simplify right side
    359,079.52x = 72,401,041,476.27
  5. Step 5: Solve for x
    x = 72,401,041,476.27/359,079.52
  6. Step 6: Final answer
    x = 201,629.55

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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.