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Finding the Fourth Proportional to 104,643.87, 144,407.82 and 56,897.25

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Solution

The fourth proportional to 104,643.87, 144,407.82 and 56,897.25 is: 78,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,643.87 : 144,407.82 = 56,897.25 : x
  2. Step 2: Convert to fraction form
    104,643.87/144,407.82 = 56,897.25/x
  3. Step 3: Cross multiply
    104,643.87x = 144,407.82 × 56,897.25
  4. Step 4: Simplify right side
    104,643.87x = 8,216,407,836.50
  5. Step 5: Solve for x
    x = 8,216,407,836.50/104,643.87
  6. Step 6: Final answer
    x = 78,517.81

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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.