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Finding the Fourth Proportional to 88,694.40, 133,041.60 and 65,366.40

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Solution

The fourth proportional to 88,694.40, 133,041.60 and 65,366.40 is: 98,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,694.40 : 133,041.60 = 65,366.40 : x
  2. Step 2: Convert to fraction form
    88,694.40/133,041.60 = 65,366.40/x
  3. Step 3: Cross multiply
    88,694.40x = 133,041.60 × 65,366.40
  4. Step 4: Simplify right side
    88,694.40x = 8,696,450,442.24
  5. Step 5: Solve for x
    x = 8,696,450,442.24/88,694.40
  6. Step 6: Final answer
    x = 98,049.60

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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.