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Finding the Fourth Proportional to 176,306.46, 243,372.36 and 118,979.72

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Solution

The fourth proportional to 176,306.46, 243,372.36 and 118,979.72 is: 164,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,306.46 : 243,372.36 = 118,979.72 : x
  2. Step 2: Convert to fraction form
    176,306.46/243,372.36 = 118,979.72/x
  3. Step 3: Cross multiply
    176,306.46x = 243,372.36 × 118,979.72
  4. Step 4: Simplify right side
    176,306.46x = 28,956,375,390.50
  5. Step 5: Solve for x
    x = 28,956,375,390.50/176,306.46
  6. Step 6: Final answer
    x = 164,238.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.