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Finding the Fourth Proportional to 268,886.55, 403,329.83 and 111,422.55

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Solution

The fourth proportional to 268,886.55, 403,329.83 and 111,422.55 is: 167,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,886.55 : 403,329.83 = 111,422.55 : x
  2. Step 2: Convert to fraction form
    268,886.55/403,329.83 = 111,422.55/x
  3. Step 3: Cross multiply
    268,886.55x = 403,329.83 × 111,422.55
  4. Step 4: Simplify right side
    268,886.55x = 44,940,037,592.55
  5. Step 5: Solve for x
    x = 44,940,037,592.55/268,886.55
  6. Step 6: Final answer
    x = 167,133.83

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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.