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Finding the Fourth Proportional to 77,494.95, 106,942.98 and 43,503.51

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Solution

The fourth proportional to 77,494.95, 106,942.98 and 43,503.51 is: 60,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,494.95 : 106,942.98 = 43,503.51 : x
  2. Step 2: Convert to fraction form
    77,494.95/106,942.98 = 43,503.51/x
  3. Step 3: Cross multiply
    77,494.95x = 106,942.98 × 43,503.51
  4. Step 4: Simplify right side
    77,494.95x = 4,652,394,761.96
  5. Step 5: Solve for x
    x = 4,652,394,761.96/77,494.95
  6. Step 6: Final answer
    x = 60,034.81

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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.