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Finding the Fourth Proportional to 104,818.74, 144,652.95 and 57,074.10

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Solution

The fourth proportional to 104,818.74, 144,652.95 and 57,074.10 is: 78,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,818.74 : 144,652.95 = 57,074.10 : x
  2. Step 2: Convert to fraction form
    104,818.74/144,652.95 = 57,074.10/x
  3. Step 3: Cross multiply
    104,818.74x = 144,652.95 × 57,074.10
  4. Step 4: Simplify right side
    104,818.74x = 8,255,936,933.60
  5. Step 5: Solve for x
    x = 8,255,936,933.60/104,818.74
  6. Step 6: Final answer
    x = 78,763.94

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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.