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Finding the Fourth Proportional to 127,920.32, 191,880.84 and 44,794.88

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Solution

The fourth proportional to 127,920.32, 191,880.84 and 44,794.88 is: 67,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,920.32 : 191,880.84 = 44,794.88 : x
  2. Step 2: Convert to fraction form
    127,920.32/191,880.84 = 44,794.88/x
  3. Step 3: Cross multiply
    127,920.32x = 191,880.84 × 44,794.88
  4. Step 4: Simplify right side
    127,920.32x = 8,595,279,202.10
  5. Step 5: Solve for x
    x = 8,595,279,202.10/127,920.32
  6. Step 6: Final answer
    x = 67,192.45

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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.