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Finding the Fourth Proportional to 110,053.60, 165,080.40 and 103,492.60

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Solution

The fourth proportional to 110,053.60, 165,080.40 and 103,492.60 is: 155,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,053.60 : 165,080.40 = 103,492.60 : x
  2. Step 2: Convert to fraction form
    110,053.60/165,080.40 = 103,492.60/x
  3. Step 3: Cross multiply
    110,053.60x = 165,080.40 × 103,492.60
  4. Step 4: Simplify right side
    110,053.60x = 17,084,599,805.04
  5. Step 5: Solve for x
    x = 17,084,599,805.04/110,053.60
  6. Step 6: Final answer
    x = 155,238.90

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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.