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Finding the Fourth Proportional to 104,643.62, 144,407.44 and 56,897

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Solution

The fourth proportional to 104,643.62, 144,407.44 and 56,897 is: 78,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,643.62 : 144,407.44 = 56,897 : x
  2. Step 2: Convert to fraction form
    104,643.62/144,407.44 = 56,897/x
  3. Step 3: Cross multiply
    104,643.62x = 144,407.44 × 56,897
  4. Step 4: Simplify right side
    104,643.62x = 8,216,350,113.68
  5. Step 5: Solve for x
    x = 8,216,350,113.68/104,643.62
  6. Step 6: Final answer
    x = 78,517.45

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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.