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Finding the Fourth Proportional to 486,816.91, 730,069.52 and 162,535.38

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Solution

The fourth proportional to 486,816.91, 730,069.52 and 162,535.38 is: 243,751.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,816.91 : 730,069.52 = 162,535.38 : x
  2. Step 2: Convert to fraction form
    486,816.91/730,069.52 = 162,535.38/x
  3. Step 3: Cross multiply
    486,816.91x = 730,069.52 × 162,535.38
  4. Step 4: Simplify right side
    486,816.91x = 118,662,126,859.62
  5. Step 5: Solve for x
    x = 118,662,126,859.62/486,816.91
  6. Step 6: Final answer
    x = 243,751.04

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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.