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Finding the Fourth Proportional to 192,078.60, 288,117.90 and 176,872.20

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Solution

The fourth proportional to 192,078.60, 288,117.90 and 176,872.20 is: 265,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,078.60 : 288,117.90 = 176,872.20 : x
  2. Step 2: Convert to fraction form
    192,078.60/288,117.90 = 176,872.20/x
  3. Step 3: Cross multiply
    192,078.60x = 288,117.90 × 176,872.20
  4. Step 4: Simplify right side
    192,078.60x = 50,960,046,832.38
  5. Step 5: Solve for x
    x = 50,960,046,832.38/192,078.60
  6. Step 6: Final answer
    x = 265,308.30

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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.