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Finding the Fourth Proportional to 112,600.40, 168,926.20 and 65,829.20

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Solution

The fourth proportional to 112,600.40, 168,926.20 and 65,829.20 is: 98,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,600.40 : 168,926.20 = 65,829.20 : x
  2. Step 2: Convert to fraction form
    112,600.40/168,926.20 = 65,829.20/x
  3. Step 3: Cross multiply
    112,600.40x = 168,926.20 × 65,829.20
  4. Step 4: Simplify right side
    112,600.40x = 11,120,276,605.04
  5. Step 5: Solve for x
    x = 11,120,276,605.04/112,600.40
  6. Step 6: Final answer
    x = 98,758.77

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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.