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Finding the Fourth Proportional to 77,805.50, 107,391.03 and 44,290.94

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Solution

The fourth proportional to 77,805.50, 107,391.03 and 44,290.94 is: 61,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,805.50 : 107,391.03 = 44,290.94 : x
  2. Step 2: Convert to fraction form
    77,805.50/107,391.03 = 44,290.94/x
  3. Step 3: Cross multiply
    77,805.50x = 107,391.03 × 44,290.94
  4. Step 4: Simplify right side
    77,805.50x = 4,756,449,666.27
  5. Step 5: Solve for x
    x = 4,756,449,666.27/77,805.50
  6. Step 6: Final answer
    x = 61,132.56

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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.