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Finding the Fourth Proportional to 111,971.70, 167,957.55 and 49,642.20

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Solution

The fourth proportional to 111,971.70, 167,957.55 and 49,642.20 is: 74,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,971.70 : 167,957.55 = 49,642.20 : x
  2. Step 2: Convert to fraction form
    111,971.70/167,957.55 = 49,642.20/x
  3. Step 3: Cross multiply
    111,971.70x = 167,957.55 × 49,642.20
  4. Step 4: Simplify right side
    111,971.70x = 8,337,782,288.61
  5. Step 5: Solve for x
    x = 8,337,782,288.61/111,971.70
  6. Step 6: Final answer
    x = 74,463.30

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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.