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Finding the Fourth Proportional to 161,866.08, 223,411.04 and 105,179.04

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Solution

The fourth proportional to 161,866.08, 223,411.04 and 105,179.04 is: 145,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,866.08 : 223,411.04 = 105,179.04 : x
  2. Step 2: Convert to fraction form
    161,866.08/223,411.04 = 105,179.04/x
  3. Step 3: Cross multiply
    161,866.08x = 223,411.04 × 105,179.04
  4. Step 4: Simplify right side
    161,866.08x = 23,498,158,712.60
  5. Step 5: Solve for x
    x = 23,498,158,712.60/161,866.08
  6. Step 6: Final answer
    x = 145,170.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.