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Finding the Fourth Proportional to 117,951.20, 176,926.80 and 39,077.60

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Solution

The fourth proportional to 117,951.20, 176,926.80 and 39,077.60 is: 58,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,951.20 : 176,926.80 = 39,077.60 : x
  2. Step 2: Convert to fraction form
    117,951.20/176,926.80 = 39,077.60/x
  3. Step 3: Cross multiply
    117,951.20x = 176,926.80 × 39,077.60
  4. Step 4: Simplify right side
    117,951.20x = 6,913,874,719.68
  5. Step 5: Solve for x
    x = 6,913,874,719.68/117,951.20
  6. Step 6: Final answer
    x = 58,616.40

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1.5x scale

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.