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Finding the Fourth Proportional to 153,304.15, 229,956.29 and 68,965.80

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Solution

The fourth proportional to 153,304.15, 229,956.29 and 68,965.80 is: 103,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,304.15 : 229,956.29 = 68,965.80 : x
  2. Step 2: Convert to fraction form
    153,304.15/229,956.29 = 68,965.80/x
  3. Step 3: Cross multiply
    153,304.15x = 229,956.29 × 68,965.80
  4. Step 4: Simplify right side
    153,304.15x = 15,859,119,160.05
  5. Step 5: Solve for x
    x = 15,859,119,160.05/153,304.15
  6. Step 6: Final answer
    x = 103,448.73

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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.