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Finding the Fourth Proportional to 70,977.82, 106,341.45 and 63,255.28

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Solution

The fourth proportional to 70,977.82, 106,341.45 and 63,255.28 is: 94,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,977.82 : 106,341.45 = 63,255.28 : x
  2. Step 2: Convert to fraction form
    70,977.82/106,341.45 = 63,255.28/x
  3. Step 3: Cross multiply
    70,977.82x = 106,341.45 × 63,255.28
  4. Step 4: Simplify right side
    70,977.82x = 6,726,658,195.36
  5. Step 5: Solve for x
    x = 6,726,658,195.36/70,977.82
  6. Step 6: Final answer
    x = 94,771.27

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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.