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Finding the Fourth Proportional to 96,538.10, 144,479.10 and 84,728.30

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Solution

The fourth proportional to 96,538.10, 144,479.10 and 84,728.30 is: 126,804.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,538.10 : 144,479.10 = 84,728.30 : x
  2. Step 2: Convert to fraction form
    96,538.10/144,479.10 = 84,728.30/x
  3. Step 3: Cross multiply
    96,538.10x = 144,479.10 × 84,728.30
  4. Step 4: Simplify right side
    96,538.10x = 12,241,468,528.53
  5. Step 5: Solve for x
    x = 12,241,468,528.53/96,538.10
  6. Step 6: Final answer
    x = 126,804.53

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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.