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Finding the Fourth Proportional to 104,078.01, 143,630.28 and 63,813.98

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Solution

The fourth proportional to 104,078.01, 143,630.28 and 63,813.98 is: 88,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.01 : 143,630.28 = 63,813.98 : x
  2. Step 2: Convert to fraction form
    104,078.01/143,630.28 = 63,813.98/x
  3. Step 3: Cross multiply
    104,078.01x = 143,630.28 × 63,813.98
  4. Step 4: Simplify right side
    104,078.01x = 9,165,619,097.16
  5. Step 5: Solve for x
    x = 9,165,619,097.16/104,078.01
  6. Step 6: Final answer
    x = 88,064.90

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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.