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Finding the Fourth Proportional to 359,976.30, 540,044.96 and 135,338.67

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Solution

The fourth proportional to 359,976.30, 540,044.96 and 135,338.67 is: 203,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,976.30 : 540,044.96 = 135,338.67 : x
  2. Step 2: Convert to fraction form
    359,976.30/540,044.96 = 135,338.67/x
  3. Step 3: Cross multiply
    359,976.30x = 540,044.96 × 135,338.67
  4. Step 4: Simplify right side
    359,976.30x = 73,088,966,626.60
  5. Step 5: Solve for x
    x = 73,088,966,626.60/359,976.30
  6. Step 6: Final answer
    x = 203,038.27

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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.