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Finding the Fourth Proportional to 104,798.61, 144,625.10 and 57,052.76

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Solution

The fourth proportional to 104,798.61, 144,625.10 and 57,052.76 is: 78,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,798.61 : 144,625.10 = 57,052.76 : x
  2. Step 2: Convert to fraction form
    104,798.61/144,625.10 = 57,052.76/x
  3. Step 3: Cross multiply
    104,798.61x = 144,625.10 × 57,052.76
  4. Step 4: Simplify right side
    104,798.61x = 8,251,260,111.89
  5. Step 5: Solve for x
    x = 8,251,260,111.89/104,798.61
  6. Step 6: Final answer
    x = 78,734.44

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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.