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Finding the Fourth Proportional to 220,493.79, 330,722.73 and 70,693.74

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Solution

The fourth proportional to 220,493.79, 330,722.73 and 70,693.74 is: 106,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,493.79 : 330,722.73 = 70,693.74 : x
  2. Step 2: Convert to fraction form
    220,493.79/330,722.73 = 70,693.74/x
  3. Step 3: Cross multiply
    220,493.79x = 330,722.73 × 70,693.74
  4. Step 4: Simplify right side
    220,493.79x = 23,380,026,686.71
  5. Step 5: Solve for x
    x = 23,380,026,686.71/220,493.79
  6. Step 6: Final answer
    x = 106,034.85

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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.