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Finding the Fourth Proportional to 359,039.65, 538,573.14 and 134,376.43

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Solution

The fourth proportional to 359,039.65, 538,573.14 and 134,376.43 is: 201,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,039.65 : 538,573.14 = 134,376.43 : x
  2. Step 2: Convert to fraction form
    359,039.65/538,573.14 = 134,376.43/x
  3. Step 3: Cross multiply
    359,039.65x = 538,573.14 × 134,376.43
  4. Step 4: Simplify right side
    359,039.65x = 72,371,535,847.09
  5. Step 5: Solve for x
    x = 72,371,535,847.09/359,039.65
  6. Step 6: Final answer
    x = 201,569.76

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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.