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Finding the Fourth Proportional to 111,876.60, 168,009.30 and 59,388.60

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Solution

The fourth proportional to 111,876.60, 168,009.30 and 59,388.60 is: 89,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,876.60 : 168,009.30 = 59,388.60 : x
  2. Step 2: Convert to fraction form
    111,876.60/168,009.30 = 59,388.60/x
  3. Step 3: Cross multiply
    111,876.60x = 168,009.30 × 59,388.60
  4. Step 4: Simplify right side
    111,876.60x = 9,977,837,113.98
  5. Step 5: Solve for x
    x = 9,977,837,113.98/111,876.60
  6. Step 6: Final answer
    x = 89,186.10

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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.