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Finding the Fourth Proportional to 112,534.40, 168,827.20 and 65,763.20

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Solution

The fourth proportional to 112,534.40, 168,827.20 and 65,763.20 is: 98,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,534.40 : 168,827.20 = 65,763.20 : x
  2. Step 2: Convert to fraction form
    112,534.40/168,827.20 = 65,763.20/x
  3. Step 3: Cross multiply
    112,534.40x = 168,827.20 × 65,763.20
  4. Step 4: Simplify right side
    112,534.40x = 11,102,616,919.04
  5. Step 5: Solve for x
    x = 11,102,616,919.04/112,534.40
  6. Step 6: Final answer
    x = 98,659.76

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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.