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Finding the Fourth Proportional to 117,630.40, 176,445.68 and 28,884.40

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Solution

The fourth proportional to 117,630.40, 176,445.68 and 28,884.40 is: 43,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,630.40 : 176,445.68 = 28,884.40 : x
  2. Step 2: Convert to fraction form
    117,630.40/176,445.68 = 28,884.40/x
  3. Step 3: Cross multiply
    117,630.40x = 176,445.68 × 28,884.40
  4. Step 4: Simplify right side
    117,630.40x = 5,096,527,599.39
  5. Step 5: Solve for x
    x = 5,096,527,599.39/117,630.40
  6. Step 6: Final answer
    x = 43,326.62

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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.