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Finding the Fourth Proportional to 110,532.40, 165,798.60 and 102,659.20

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Solution

The fourth proportional to 110,532.40, 165,798.60 and 102,659.20 is: 153,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,532.40 : 165,798.60 = 102,659.20 : x
  2. Step 2: Convert to fraction form
    110,532.40/165,798.60 = 102,659.20/x
  3. Step 3: Cross multiply
    110,532.40x = 165,798.60 × 102,659.20
  4. Step 4: Simplify right side
    110,532.40x = 17,020,751,637.12
  5. Step 5: Solve for x
    x = 17,020,751,637.12/110,532.40
  6. Step 6: Final answer
    x = 153,988.80

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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.