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Finding the Fourth Proportional to 359,032.48, 538,640.99 and 134,396.15

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Solution

The fourth proportional to 359,032.48, 538,640.99 and 134,396.15 is: 201,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,032.48 : 538,640.99 = 134,396.15 : x
  2. Step 2: Convert to fraction form
    359,032.48/538,640.99 = 134,396.15/x
  3. Step 3: Cross multiply
    359,032.48x = 538,640.99 × 134,396.15
  4. Step 4: Simplify right side
    359,032.48x = 72,391,275,288.19
  5. Step 5: Solve for x
    x = 72,391,275,288.19/359,032.48
  6. Step 6: Final answer
    x = 201,628.76

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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.