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Finding the Fourth Proportional to 104,368.38, 144,027.99 and 56,620.86

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Solution

The fourth proportional to 104,368.38, 144,027.99 and 56,620.86 is: 78,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,368.38 : 144,027.99 = 56,620.86 : x
  2. Step 2: Convert to fraction form
    104,368.38/144,027.99 = 56,620.86/x
  3. Step 3: Cross multiply
    104,368.38x = 144,027.99 × 56,620.86
  4. Step 4: Simplify right side
    104,368.38x = 8,154,988,657.87
  5. Step 5: Solve for x
    x = 8,154,988,657.87/104,368.38
  6. Step 6: Final answer
    x = 78,136.58

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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.