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Finding the Fourth Proportional to 151,882.97, 209,600.45 and 83,899.67

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Solution

The fourth proportional to 151,882.97, 209,600.45 and 83,899.67 is: 115,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,882.97 : 209,600.45 = 83,899.67 : x
  2. Step 2: Convert to fraction form
    151,882.97/209,600.45 = 83,899.67/x
  3. Step 3: Cross multiply
    151,882.97x = 209,600.45 × 83,899.67
  4. Step 4: Simplify right side
    151,882.97x = 17,585,409,005.98
  5. Step 5: Solve for x
    x = 17,585,409,005.98/151,882.97
  6. Step 6: Final answer
    x = 115,782.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.