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Finding the Fourth Proportional to 111,276.86, 153,472.92 and 97,819.52

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Solution

The fourth proportional to 111,276.86, 153,472.92 and 97,819.52 is: 134,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,276.86 : 153,472.92 = 97,819.52 : x
  2. Step 2: Convert to fraction form
    111,276.86/153,472.92 = 97,819.52/x
  3. Step 3: Cross multiply
    111,276.86x = 153,472.92 × 97,819.52
  4. Step 4: Simplify right side
    111,276.86x = 15,012,647,367.40
  5. Step 5: Solve for x
    x = 15,012,647,367.40/111,276.86
  6. Step 6: Final answer
    x = 134,912.57

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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.