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Finding the Fourth Proportional to 539,821.48, 809,590.72 and 160,640.52

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Solution

The fourth proportional to 539,821.48, 809,590.72 and 160,640.52 is: 240,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,821.48 : 809,590.72 = 160,640.52 : x
  2. Step 2: Convert to fraction form
    539,821.48/809,590.72 = 160,640.52/x
  3. Step 3: Cross multiply
    539,821.48x = 809,590.72 × 160,640.52
  4. Step 4: Simplify right side
    539,821.48x = 130,053,074,247.97
  5. Step 5: Solve for x
    x = 130,053,074,247.97/539,821.48
  6. Step 6: Final answer
    x = 240,918.67

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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.