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Finding the Fourth Proportional to 108,873.60, 163,348.80 and 105,033.60

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Solution

The fourth proportional to 108,873.60, 163,348.80 and 105,033.60 is: 157,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,873.60 : 163,348.80 = 105,033.60 : x
  2. Step 2: Convert to fraction form
    108,873.60/163,348.80 = 105,033.60/x
  3. Step 3: Cross multiply
    108,873.60x = 163,348.80 × 105,033.60
  4. Step 4: Simplify right side
    108,873.60x = 17,157,112,519.68
  5. Step 5: Solve for x
    x = 17,157,112,519.68/108,873.60
  6. Step 6: Final answer
    x = 157,587.45

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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.