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Finding the Fourth Proportional to 221,069.52, 305,058.96 and 124,268.04

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Solution

The fourth proportional to 221,069.52, 305,058.96 and 124,268.04 is: 171,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,069.52 : 305,058.96 = 124,268.04 : x
  2. Step 2: Convert to fraction form
    221,069.52/305,058.96 = 124,268.04/x
  3. Step 3: Cross multiply
    221,069.52x = 305,058.96 × 124,268.04
  4. Step 4: Simplify right side
    221,069.52x = 37,909,079,043.64
  5. Step 5: Solve for x
    x = 37,909,079,043.64/221,069.52
  6. Step 6: Final answer
    x = 171,480.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.