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Finding the Fourth Proportional to 112,506.20, 168,564.90 and 53,214.20

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Solution

The fourth proportional to 112,506.20, 168,564.90 and 53,214.20 is: 79,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,506.20 : 168,564.90 = 53,214.20 : x
  2. Step 2: Convert to fraction form
    112,506.20/168,564.90 = 53,214.20/x
  3. Step 3: Cross multiply
    112,506.20x = 168,564.90 × 53,214.20
  4. Step 4: Simplify right side
    112,506.20x = 8,970,046,301.58
  5. Step 5: Solve for x
    x = 8,970,046,301.58/112,506.20
  6. Step 6: Final answer
    x = 79,729.35

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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.