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Finding the Fourth Proportional to 269,265.40, 403,957.16 and 79,740.52

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Solution

The fourth proportional to 269,265.40, 403,957.16 and 79,740.52 is: 119,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,265.40 : 403,957.16 = 79,740.52 : x
  2. Step 2: Convert to fraction form
    269,265.40/403,957.16 = 79,740.52/x
  3. Step 3: Cross multiply
    269,265.40x = 403,957.16 × 79,740.52
  4. Step 4: Simplify right side
    269,265.40x = 32,211,752,886.55
  5. Step 5: Solve for x
    x = 32,211,752,886.55/269,265.40
  6. Step 6: Final answer
    x = 119,628.27

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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.