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Finding the Fourth Proportional to 165,283.60, 248,119.80 and 164,117.20

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Solution

The fourth proportional to 165,283.60, 248,119.80 and 164,117.20 is: 246,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,283.60 : 248,119.80 = 164,117.20 : x
  2. Step 2: Convert to fraction form
    165,283.60/248,119.80 = 164,117.20/x
  3. Step 3: Cross multiply
    165,283.60x = 248,119.80 × 164,117.20
  4. Step 4: Simplify right side
    165,283.60x = 40,720,726,840.56
  5. Step 5: Solve for x
    x = 40,720,726,840.56/165,283.60
  6. Step 6: Final answer
    x = 246,368.83

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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.