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Finding the Fourth Proportional to 70,392.92, 105,598.18 and 23,012.78

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Solution

The fourth proportional to 70,392.92, 105,598.18 and 23,012.78 is: 34,522.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,392.92 : 105,598.18 = 23,012.78 : x
  2. Step 2: Convert to fraction form
    70,392.92/105,598.18 = 23,012.78/x
  3. Step 3: Cross multiply
    70,392.92x = 105,598.18 × 23,012.78
  4. Step 4: Simplify right side
    70,392.92x = 2,430,107,185.52
  5. Step 5: Solve for x
    x = 2,430,107,185.52/70,392.92
  6. Step 6: Final answer
    x = 34,522.04

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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.