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Finding the Fourth Proportional to 245,912.60, 368,912.10 and 88,232.60

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Solution

The fourth proportional to 245,912.60, 368,912.10 and 88,232.60 is: 132,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,912.60 : 368,912.10 = 88,232.60 : x
  2. Step 2: Convert to fraction form
    245,912.60/368,912.10 = 88,232.60/x
  3. Step 3: Cross multiply
    245,912.60x = 368,912.10 × 88,232.60
  4. Step 4: Simplify right side
    245,912.60x = 32,550,073,754.46
  5. Step 5: Solve for x
    x = 32,550,073,754.46/245,912.60
  6. Step 6: Final answer
    x = 132,364.40

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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.