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Finding the Fourth Proportional to 111,931.70, 167,897.55 and 45,337.55

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Solution

The fourth proportional to 111,931.70, 167,897.55 and 45,337.55 is: 68,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,931.70 : 167,897.55 = 45,337.55 : x
  2. Step 2: Convert to fraction form
    111,931.70/167,897.55 = 45,337.55/x
  3. Step 3: Cross multiply
    111,931.70x = 167,897.55 × 45,337.55
  4. Step 4: Simplify right side
    111,931.70x = 7,612,063,568.00
  5. Step 5: Solve for x
    x = 7,612,063,568.00/111,931.70
  6. Step 6: Final answer
    x = 68,006.33

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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.