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Finding the Fourth Proportional to 70,922.32, 106,432.62 and 45,900.07

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Solution

The fourth proportional to 70,922.32, 106,432.62 and 45,900.07 is: 68,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,922.32 : 106,432.62 = 45,900.07 : x
  2. Step 2: Convert to fraction form
    70,922.32/106,432.62 = 45,900.07/x
  3. Step 3: Cross multiply
    70,922.32x = 106,432.62 × 45,900.07
  4. Step 4: Simplify right side
    70,922.32x = 4,885,264,708.28
  5. Step 5: Solve for x
    x = 4,885,264,708.28/70,922.32
  6. Step 6: Final answer
    x = 68,881.91

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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.