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Finding the Fourth Proportional to 111,950.40, 167,925.60 and 105,535.20

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Solution

The fourth proportional to 111,950.40, 167,925.60 and 105,535.20 is: 158,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,950.40 : 167,925.60 = 105,535.20 : x
  2. Step 2: Convert to fraction form
    111,950.40/167,925.60 = 105,535.20/x
  3. Step 3: Cross multiply
    111,950.40x = 167,925.60 × 105,535.20
  4. Step 4: Simplify right side
    111,950.40x = 17,722,061,781.12
  5. Step 5: Solve for x
    x = 17,722,061,781.12/111,950.40
  6. Step 6: Final answer
    x = 158,302.80

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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.