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Finding the Fourth Proportional to 316,841.28, 475,261.92 and 106,479.84

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Solution

The fourth proportional to 316,841.28, 475,261.92 and 106,479.84 is: 159,719.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,841.28 : 475,261.92 = 106,479.84 : x
  2. Step 2: Convert to fraction form
    316,841.28/475,261.92 = 106,479.84/x
  3. Step 3: Cross multiply
    316,841.28x = 475,261.92 × 106,479.84
  4. Step 4: Simplify right side
    316,841.28x = 50,605,813,199.69
  5. Step 5: Solve for x
    x = 50,605,813,199.69/316,841.28
  6. Step 6: Final answer
    x = 159,719.76

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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.