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Finding the Fourth Proportional to 165,612.60, 248,127.30 and 135,869.40

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Solution

The fourth proportional to 165,612.60, 248,127.30 and 135,869.40 is: 203,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612.60 : 248,127.30 = 135,869.40 : x
  2. Step 2: Convert to fraction form
    165,612.60/248,127.30 = 135,869.40/x
  3. Step 3: Cross multiply
    165,612.60x = 248,127.30 × 135,869.40
  4. Step 4: Simplify right side
    165,612.60x = 33,712,907,374.62
  5. Step 5: Solve for x
    x = 33,712,907,374.62/165,612.60
  6. Step 6: Final answer
    x = 203,564.87

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1.5x scale

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.