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Finding the Fourth Proportional to 441,613.28, 662,430.80 and 161,130.48

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Solution

The fourth proportional to 441,613.28, 662,430.80 and 161,130.48 is: 241,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,613.28 : 662,430.80 = 161,130.48 : x
  2. Step 2: Convert to fraction form
    441,613.28/662,430.80 = 161,130.48/x
  3. Step 3: Cross multiply
    441,613.28x = 662,430.80 × 161,130.48
  4. Step 4: Simplify right side
    441,613.28x = 106,737,792,770.78
  5. Step 5: Solve for x
    x = 106,737,792,770.78/441,613.28
  6. Step 6: Final answer
    x = 241,699.69

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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.