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Finding the Fourth Proportional to 359,047.18, 538,584.44 and 134,383.96

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Solution

The fourth proportional to 359,047.18, 538,584.44 and 134,383.96 is: 201,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,047.18 : 538,584.44 = 134,383.96 : x
  2. Step 2: Convert to fraction form
    359,047.18/538,584.44 = 134,383.96/x
  3. Step 3: Cross multiply
    359,047.18x = 538,584.44 × 134,383.96
  4. Step 4: Simplify right side
    359,047.18x = 72,377,107,823.20
  5. Step 5: Solve for x
    x = 72,377,107,823.20/359,047.18
  6. Step 6: Final answer
    x = 201,581.05

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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.