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Finding the Fourth Proportional to 128,335.44, 192,488.45 and 33,574.76

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Solution

The fourth proportional to 128,335.44, 192,488.45 and 33,574.76 is: 50,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,335.44 : 192,488.45 = 33,574.76 : x
  2. Step 2: Convert to fraction form
    128,335.44/192,488.45 = 33,574.76/x
  3. Step 3: Cross multiply
    128,335.44x = 192,488.45 × 33,574.76
  4. Step 4: Simplify right side
    128,335.44x = 6,462,754,234.57
  5. Step 5: Solve for x
    x = 6,462,754,234.57/128,335.44
  6. Step 6: Final answer
    x = 50,358.30

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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.