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Finding the Fourth Proportional to 112,065.32, 168,110.27 and 55,919.55

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Solution

The fourth proportional to 112,065.32, 168,110.27 and 55,919.55 is: 83,885.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.32 : 168,110.27 = 55,919.55 : x
  2. Step 2: Convert to fraction form
    112,065.32/168,110.27 = 55,919.55/x
  3. Step 3: Cross multiply
    112,065.32x = 168,110.27 × 55,919.55
  4. Step 4: Simplify right side
    112,065.32x = 9,400,650,369.18
  5. Step 5: Solve for x
    x = 9,400,650,369.18/112,065.32
  6. Step 6: Final answer
    x = 83,885.46

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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.