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Finding the Fourth Proportional to 110,577.60, 165,866.40 and 31,687.20

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Solution

The fourth proportional to 110,577.60, 165,866.40 and 31,687.20 is: 47,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,577.60 : 165,866.40 = 31,687.20 : x
  2. Step 2: Convert to fraction form
    110,577.60/165,866.40 = 31,687.20/x
  3. Step 3: Cross multiply
    110,577.60x = 165,866.40 × 31,687.20
  4. Step 4: Simplify right side
    110,577.60x = 5,255,841,790.08
  5. Step 5: Solve for x
    x = 5,255,841,790.08/110,577.60
  6. Step 6: Final answer
    x = 47,530.80

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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.