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Finding the Fourth Proportional to 98,474.96, 136,069.32 and 72,944.72

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Solution

The fourth proportional to 98,474.96, 136,069.32 and 72,944.72 is: 100,792.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,474.96 : 136,069.32 = 72,944.72 : x
  2. Step 2: Convert to fraction form
    98,474.96/136,069.32 = 72,944.72/x
  3. Step 3: Cross multiply
    98,474.96x = 136,069.32 × 72,944.72
  4. Step 4: Simplify right side
    98,474.96x = 9,925,538,447.99
  5. Step 5: Solve for x
    x = 9,925,538,447.99/98,474.96
  6. Step 6: Final answer
    x = 100,792.51

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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.