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Finding the Fourth Proportional to 247,211.75, 370,597.71 and 89,405.12

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Solution

The fourth proportional to 247,211.75, 370,597.71 and 89,405.12 is: 134,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,211.75 : 370,597.71 = 89,405.12 : x
  2. Step 2: Convert to fraction form
    247,211.75/370,597.71 = 89,405.12/x
  3. Step 3: Cross multiply
    247,211.75x = 370,597.71 × 89,405.12
  4. Step 4: Simplify right side
    247,211.75x = 33,133,332,734.28
  5. Step 5: Solve for x
    x = 33,133,332,734.28/247,211.75
  6. Step 6: Final answer
    x = 134,028.15

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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.