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Finding the Fourth Proportional to 112,388.60, 168,364.20 and 62,379.20

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Solution

The fourth proportional to 112,388.60, 168,364.20 and 62,379.20 is: 93,447.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,388.60 : 168,364.20 = 62,379.20 : x
  2. Step 2: Convert to fraction form
    112,388.60/168,364.20 = 62,379.20/x
  3. Step 3: Cross multiply
    112,388.60x = 168,364.20 × 62,379.20
  4. Step 4: Simplify right side
    112,388.60x = 10,502,424,104.64
  5. Step 5: Solve for x
    x = 10,502,424,104.64/112,388.60
  6. Step 6: Final answer
    x = 93,447.41

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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.