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Finding the Fourth Proportional to 73,117.40, 109,686.90 and 23,202.20

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Solution

The fourth proportional to 73,117.40, 109,686.90 and 23,202.20 is: 34,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,117.40 : 109,686.90 = 23,202.20 : x
  2. Step 2: Convert to fraction form
    73,117.40/109,686.90 = 23,202.20/x
  3. Step 3: Cross multiply
    73,117.40x = 109,686.90 × 23,202.20
  4. Step 4: Simplify right side
    73,117.40x = 2,544,977,391.18
  5. Step 5: Solve for x
    x = 2,544,977,391.18/73,117.40
  6. Step 6: Final answer
    x = 34,806.73

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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.