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Finding the Fourth Proportional to 136,931.60, 192,257.20 and 136,931.60

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Solution

The fourth proportional to 136,931.60, 192,257.20 and 136,931.60 is: 192,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,931.60 : 192,257.20 = 136,931.60 : x
  2. Step 2: Convert to fraction form
    136,931.60/192,257.20 = 136,931.60/x
  3. Step 3: Cross multiply
    136,931.60x = 192,257.20 × 136,931.60
  4. Step 4: Simplify right side
    136,931.60x = 26,326,086,007.52
  5. Step 5: Solve for x
    x = 26,326,086,007.52/136,931.60
  6. Step 6: Final answer
    x = 192,257.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.