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Finding the Fourth Proportional to 104,627.92, 144,391.80 and 64,343.92

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Solution

The fourth proportional to 104,627.92, 144,391.80 and 64,343.92 is: 88,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,627.92 : 144,391.80 = 64,343.92 : x
  2. Step 2: Convert to fraction form
    104,627.92/144,391.80 = 64,343.92/x
  3. Step 3: Cross multiply
    104,627.92x = 144,391.80 × 64,343.92
  4. Step 4: Simplify right side
    104,627.92x = 9,290,734,427.86
  5. Step 5: Solve for x
    x = 9,290,734,427.86/104,627.92
  6. Step 6: Final answer
    x = 88,797.85

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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.