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Finding the Fourth Proportional to 132,036.30, 198,076.32 and 65,478.60

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Solution

The fourth proportional to 132,036.30, 198,076.32 and 65,478.60 is: 98,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,036.30 : 198,076.32 = 65,478.60 : x
  2. Step 2: Convert to fraction form
    132,036.30/198,076.32 = 65,478.60/x
  3. Step 3: Cross multiply
    132,036.30x = 198,076.32 × 65,478.60
  4. Step 4: Simplify right side
    132,036.30x = 12,969,760,126.75
  5. Step 5: Solve for x
    x = 12,969,760,126.75/132,036.30
  6. Step 6: Final answer
    x = 98,228.75

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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.