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Finding the Fourth Proportional to 74,099.62, 111,009.12 and 36,615.88

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Solution

The fourth proportional to 74,099.62, 111,009.12 and 36,615.88 is: 54,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,099.62 : 111,009.12 = 36,615.88 : x
  2. Step 2: Convert to fraction form
    74,099.62/111,009.12 = 36,615.88/x
  3. Step 3: Cross multiply
    74,099.62x = 111,009.12 × 36,615.88
  4. Step 4: Simplify right side
    74,099.62x = 4,064,696,616.83
  5. Step 5: Solve for x
    x = 4,064,696,616.83/74,099.62
  6. Step 6: Final answer
    x = 54,854.49

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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.