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Finding the Fourth Proportional to 112,694.40, 169,041.60 and 65,923.20

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Solution

The fourth proportional to 112,694.40, 169,041.60 and 65,923.20 is: 98,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,694.40 : 169,041.60 = 65,923.20 : x
  2. Step 2: Convert to fraction form
    112,694.40/169,041.60 = 65,923.20/x
  3. Step 3: Cross multiply
    112,694.40x = 169,041.60 × 65,923.20
  4. Step 4: Simplify right side
    112,694.40x = 11,143,763,205.12
  5. Step 5: Solve for x
    x = 11,143,763,205.12/112,694.40
  6. Step 6: Final answer
    x = 98,884.80

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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.