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Finding the Fourth Proportional to 268,659.60, 402,643.80 and 163,366.80

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Solution

The fourth proportional to 268,659.60, 402,643.80 and 163,366.80 is: 244,840.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,659.60 : 402,643.80 = 163,366.80 : x
  2. Step 2: Convert to fraction form
    268,659.60/402,643.80 = 163,366.80/x
  3. Step 3: Cross multiply
    268,659.60x = 402,643.80 × 163,366.80
  4. Step 4: Simplify right side
    268,659.60x = 65,778,629,145.84
  5. Step 5: Solve for x
    x = 65,778,629,145.84/268,659.60
  6. Step 6: Final answer
    x = 244,840.05

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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.