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Finding the Fourth Proportional to 112,008.60, 168,051.30 and 49,723.80

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Solution

The fourth proportional to 112,008.60, 168,051.30 and 49,723.80 is: 74,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,008.60 : 168,051.30 = 49,723.80 : x
  2. Step 2: Convert to fraction form
    112,008.60/168,051.30 = 49,723.80/x
  3. Step 3: Cross multiply
    112,008.60x = 168,051.30 × 49,723.80
  4. Step 4: Simplify right side
    112,008.60x = 8,356,149,230.94
  5. Step 5: Solve for x
    x = 8,356,149,230.94/112,008.60
  6. Step 6: Final answer
    x = 74,602.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.