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Finding the Fourth Proportional to 74,000.80, 111,001.20 and 24,085.60

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Solution

The fourth proportional to 74,000.80, 111,001.20 and 24,085.60 is: 36,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,000.80 : 111,001.20 = 24,085.60 : x
  2. Step 2: Convert to fraction form
    74,000.80/111,001.20 = 24,085.60/x
  3. Step 3: Cross multiply
    74,000.80x = 111,001.20 × 24,085.60
  4. Step 4: Simplify right side
    74,000.80x = 2,673,530,502.72
  5. Step 5: Solve for x
    x = 2,673,530,502.72/74,000.80
  6. Step 6: Final answer
    x = 36,128.40

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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.