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Finding the Fourth Proportional to 165,892.20, 248,838.30 and 124,420.20

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Solution

The fourth proportional to 165,892.20, 248,838.30 and 124,420.20 is: 186,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,892.20 : 248,838.30 = 124,420.20 : x
  2. Step 2: Convert to fraction form
    165,892.20/248,838.30 = 124,420.20/x
  3. Step 3: Cross multiply
    165,892.20x = 248,838.30 × 124,420.20
  4. Step 4: Simplify right side
    165,892.20x = 30,960,511,053.66
  5. Step 5: Solve for x
    x = 30,960,511,053.66/165,892.20
  6. Step 6: Final answer
    x = 186,630.30

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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.