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Finding the Fourth Proportional to 75,797.78, 113,554.51 and 63,397.49

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Solution

The fourth proportional to 75,797.78, 113,554.51 and 63,397.49 is: 94,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,797.78 : 113,554.51 = 63,397.49 : x
  2. Step 2: Convert to fraction form
    75,797.78/113,554.51 = 63,397.49/x
  3. Step 3: Cross multiply
    75,797.78x = 113,554.51 × 63,397.49
  4. Step 4: Simplify right side
    75,797.78x = 7,199,070,185.91
  5. Step 5: Solve for x
    x = 7,199,070,185.91/75,797.78
  6. Step 6: Final answer
    x = 94,977.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.