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Finding the Fourth Proportional to 132,316.32, 198,506.80 and 65,787.76

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Solution

The fourth proportional to 132,316.32, 198,506.80 and 65,787.76 is: 98,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,316.32 : 198,506.80 = 65,787.76 : x
  2. Step 2: Convert to fraction form
    132,316.32/198,506.80 = 65,787.76/x
  3. Step 3: Cross multiply
    132,316.32x = 198,506.80 × 65,787.76
  4. Step 4: Simplify right side
    132,316.32x = 13,059,317,716.77
  5. Step 5: Solve for x
    x = 13,059,317,716.77/132,316.32
  6. Step 6: Final answer
    x = 98,697.71

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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.