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Finding the Fourth Proportional to 265,170.60, 365,928.40 and 144,309.28

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Solution

The fourth proportional to 265,170.60, 365,928.40 and 144,309.28 is: 199,142.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,170.60 : 365,928.40 = 144,309.28 : x
  2. Step 2: Convert to fraction form
    265,170.60/365,928.40 = 144,309.28/x
  3. Step 3: Cross multiply
    265,170.60x = 365,928.40 × 144,309.28
  4. Step 4: Simplify right side
    265,170.60x = 52,806,863,935.55
  5. Step 5: Solve for x
    x = 52,806,863,935.55/265,170.60
  6. Step 6: Final answer
    x = 199,142.99

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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.