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Finding the Fourth Proportional to 81,950.70, 113,102.76 and 46,147.74

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Solution

The fourth proportional to 81,950.70, 113,102.76 and 46,147.74 is: 63,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,950.70 : 113,102.76 = 46,147.74 : x
  2. Step 2: Convert to fraction form
    81,950.70/113,102.76 = 46,147.74/x
  3. Step 3: Cross multiply
    81,950.70x = 113,102.76 × 46,147.74
  4. Step 4: Simplify right side
    81,950.70x = 5,219,436,761.76
  5. Step 5: Solve for x
    x = 5,219,436,761.76/81,950.70
  6. Step 6: Final answer
    x = 63,689.96

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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.