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Finding the Fourth Proportional to 70,565.90, 105,826.54 and 23,173.18

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Solution

The fourth proportional to 70,565.90, 105,826.54 and 23,173.18 is: 34,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,565.90 : 105,826.54 = 23,173.18 : x
  2. Step 2: Convert to fraction form
    70,565.90/105,826.54 = 23,173.18/x
  3. Step 3: Cross multiply
    70,565.90x = 105,826.54 × 23,173.18
  4. Step 4: Simplify right side
    70,565.90x = 2,452,337,460.20
  5. Step 5: Solve for x
    x = 2,452,337,460.20/70,565.90
  6. Step 6: Final answer
    x = 34,752.44

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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.