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Finding the Fourth Proportional to 164,860.80, 247,147.20 and 112,099.20

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Solution

The fourth proportional to 164,860.80, 247,147.20 and 112,099.20 is: 168,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,860.80 : 247,147.20 = 112,099.20 : x
  2. Step 2: Convert to fraction form
    164,860.80/247,147.20 = 112,099.20/x
  3. Step 3: Cross multiply
    164,860.80x = 247,147.20 × 112,099.20
  4. Step 4: Simplify right side
    164,860.80x = 27,705,003,402.24
  5. Step 5: Solve for x
    x = 27,705,003,402.24/164,860.80
  6. Step 6: Final answer
    x = 168,050.89

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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.