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Finding the Fourth Proportional to 111,948.90, 167,923.35 and 28,842.90

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Solution

The fourth proportional to 111,948.90, 167,923.35 and 28,842.90 is: 43,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,948.90 : 167,923.35 = 28,842.90 : x
  2. Step 2: Convert to fraction form
    111,948.90/167,923.35 = 28,842.90/x
  3. Step 3: Cross multiply
    111,948.90x = 167,923.35 × 28,842.90
  4. Step 4: Simplify right side
    111,948.90x = 4,843,396,391.72
  5. Step 5: Solve for x
    x = 4,843,396,391.72/111,948.90
  6. Step 6: Final answer
    x = 43,264.35

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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.