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Finding the Fourth Proportional to 151,695.78, 209,251.79 and 97,228.55

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Solution

The fourth proportional to 151,695.78, 209,251.79 and 97,228.55 is: 134,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,695.78 : 209,251.79 = 97,228.55 : x
  2. Step 2: Convert to fraction form
    151,695.78/209,251.79 = 97,228.55/x
  3. Step 3: Cross multiply
    151,695.78x = 209,251.79 × 97,228.55
  4. Step 4: Simplify right side
    151,695.78x = 20,345,247,323.42
  5. Step 5: Solve for x
    x = 20,345,247,323.42/151,695.78
  6. Step 6: Final answer
    x = 134,118.74

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1.5x scale

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.