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Finding the Fourth Proportional to 74,025.60, 110,908.80 and 60,806.40

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Solution

The fourth proportional to 74,025.60, 110,908.80 and 60,806.40 is: 91,103.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,025.60 : 110,908.80 = 60,806.40 : x
  2. Step 2: Convert to fraction form
    74,025.60/110,908.80 = 60,806.40/x
  3. Step 3: Cross multiply
    74,025.60x = 110,908.80 × 60,806.40
  4. Step 4: Simplify right side
    74,025.60x = 6,743,964,856.32
  5. Step 5: Solve for x
    x = 6,743,964,856.32/74,025.60
  6. Step 6: Final answer
    x = 91,103.14

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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.