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Finding the Fourth Proportional to 111,637.20, 167,455.80 and 37,765.20

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Solution

The fourth proportional to 111,637.20, 167,455.80 and 37,765.20 is: 56,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,637.20 : 167,455.80 = 37,765.20 : x
  2. Step 2: Convert to fraction form
    111,637.20/167,455.80 = 37,765.20/x
  3. Step 3: Cross multiply
    111,637.20x = 167,455.80 × 37,765.20
  4. Step 4: Simplify right side
    111,637.20x = 6,324,001,778.16
  5. Step 5: Solve for x
    x = 6,324,001,778.16/111,637.20
  6. Step 6: Final answer
    x = 56,647.80

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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.