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Finding the Fourth Proportional to 77,397.22, 106,798.65 and 45,559.97

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Solution

The fourth proportional to 77,397.22, 106,798.65 and 45,559.97 is: 62,867.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,397.22 : 106,798.65 = 45,559.97 : x
  2. Step 2: Convert to fraction form
    77,397.22/106,798.65 = 45,559.97/x
  3. Step 3: Cross multiply
    77,397.22x = 106,798.65 × 45,559.97
  4. Step 4: Simplify right side
    77,397.22x = 4,865,743,241.97
  5. Step 5: Solve for x
    x = 4,865,743,241.97/77,397.22
  6. Step 6: Final answer
    x = 62,867.16

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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.