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Finding the Fourth Proportional to 104,532.92, 144,254.63 and 56,786.61

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Solution

The fourth proportional to 104,532.92, 144,254.63 and 56,786.61 is: 78,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,532.92 : 144,254.63 = 56,786.61 : x
  2. Step 2: Convert to fraction form
    104,532.92/144,254.63 = 56,786.61/x
  3. Step 3: Cross multiply
    104,532.92x = 144,254.63 × 56,786.61
  4. Step 4: Simplify right side
    104,532.92x = 8,191,731,015.52
  5. Step 5: Solve for x
    x = 8,191,731,015.52/104,532.92
  6. Step 6: Final answer
    x = 78,365.08

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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.