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Finding the Fourth Proportional to 89,742.60, 134,612.70 and 27,413.40

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Solution

The fourth proportional to 89,742.60, 134,612.70 and 27,413.40 is: 41,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,742.60 : 134,612.70 = 27,413.40 : x
  2. Step 2: Convert to fraction form
    89,742.60/134,612.70 = 27,413.40/x
  3. Step 3: Cross multiply
    89,742.60x = 134,612.70 × 27,413.40
  4. Step 4: Simplify right side
    89,742.60x = 3,690,191,790.18
  5. Step 5: Solve for x
    x = 3,690,191,790.18/89,742.60
  6. Step 6: Final answer
    x = 41,119.73

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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.