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Finding the Fourth Proportional to 77,243.95, 106,606.71 and 43,265.42

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Solution

The fourth proportional to 77,243.95, 106,606.71 and 43,265.42 is: 59,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,243.95 : 106,606.71 = 43,265.42 : x
  2. Step 2: Convert to fraction form
    77,243.95/106,606.71 = 43,265.42/x
  3. Step 3: Cross multiply
    77,243.95x = 106,606.71 × 43,265.42
  4. Step 4: Simplify right side
    77,243.95x = 4,612,384,082.97
  5. Step 5: Solve for x
    x = 4,612,384,082.97/77,243.95
  6. Step 6: Final answer
    x = 59,711.91

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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.