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Finding the Fourth Proportional to 316,882.96, 475,430.32 and 103,660.60

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Solution

The fourth proportional to 316,882.96, 475,430.32 and 103,660.60 is: 155,525.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,882.96 : 475,430.32 = 103,660.60 : x
  2. Step 2: Convert to fraction form
    316,882.96/475,430.32 = 103,660.60/x
  3. Step 3: Cross multiply
    316,882.96x = 475,430.32 × 103,660.60
  4. Step 4: Simplify right side
    316,882.96x = 49,283,392,229.39
  5. Step 5: Solve for x
    x = 49,283,392,229.39/316,882.96
  6. Step 6: Final answer
    x = 155,525.54

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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.