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Finding the Fourth Proportional to 104,902.53, 144,767.15 and 57,155.86

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Solution

The fourth proportional to 104,902.53, 144,767.15 and 57,155.86 is: 78,875.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,902.53 : 144,767.15 = 57,155.86 : x
  2. Step 2: Convert to fraction form
    104,902.53/144,767.15 = 57,155.86/x
  3. Step 3: Cross multiply
    104,902.53x = 144,767.15 × 57,155.86
  4. Step 4: Simplify right side
    104,902.53x = 8,274,290,958.00
  5. Step 5: Solve for x
    x = 8,274,290,958.00/104,902.53
  6. Step 6: Final answer
    x = 78,875.99

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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.