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Finding the Fourth Proportional to 113,883.70, 170,898.45 and 66,498.70

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Solution

The fourth proportional to 113,883.70, 170,898.45 and 66,498.70 is: 99,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,883.70 : 170,898.45 = 66,498.70 : x
  2. Step 2: Convert to fraction form
    113,883.70/170,898.45 = 66,498.70/x
  3. Step 3: Cross multiply
    113,883.70x = 170,898.45 × 66,498.70
  4. Step 4: Simplify right side
    113,883.70x = 11,364,524,757.02
  5. Step 5: Solve for x
    x = 11,364,524,757.02/113,883.70
  6. Step 6: Final answer
    x = 99,790.62

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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.