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Finding the Fourth Proportional to 104,487.98, 144,268.53 and 64,255.82

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Solution

The fourth proportional to 104,487.98, 144,268.53 and 64,255.82 is: 88,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,487.98 : 144,268.53 = 64,255.82 : x
  2. Step 2: Convert to fraction form
    104,487.98/144,268.53 = 64,255.82/x
  3. Step 3: Cross multiply
    104,487.98x = 144,268.53 × 64,255.82
  4. Step 4: Simplify right side
    104,487.98x = 9,270,092,695.34
  5. Step 5: Solve for x
    x = 9,270,092,695.34/104,487.98
  6. Step 6: Final answer
    x = 88,719.23

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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.