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Finding the Fourth Proportional to 110,643.60, 165,965.40 and 110,643.60

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Solution

The fourth proportional to 110,643.60, 165,965.40 and 110,643.60 is: 165,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,643.60 : 165,965.40 = 110,643.60 : x
  2. Step 2: Convert to fraction form
    110,643.60/165,965.40 = 110,643.60/x
  3. Step 3: Cross multiply
    110,643.60x = 165,965.40 × 110,643.60
  4. Step 4: Simplify right side
    110,643.60x = 18,363,009,331.44
  5. Step 5: Solve for x
    x = 18,363,009,331.44/110,643.60
  6. Step 6: Final answer
    x = 165,965.40

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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.