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Finding the Fourth Proportional to 359,380.10, 538,912.26 and 134,582.87

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Solution

The fourth proportional to 359,380.10, 538,912.26 and 134,582.87 is: 201,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,380.10 : 538,912.26 = 134,582.87 : x
  2. Step 2: Convert to fraction form
    359,380.10/538,912.26 = 134,582.87/x
  3. Step 3: Cross multiply
    359,380.10x = 538,912.26 × 134,582.87
  4. Step 4: Simplify right side
    359,380.10x = 72,528,358,628.99
  5. Step 5: Solve for x
    x = 72,528,358,628.99/359,380.10
  6. Step 6: Final answer
    x = 201,815.18

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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.