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Finding the Fourth Proportional to 255,274.32, 352,264.56 and 140,530.56

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Solution

The fourth proportional to 255,274.32, 352,264.56 and 140,530.56 is: 193,924.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,274.32 : 352,264.56 = 140,530.56 : x
  2. Step 2: Convert to fraction form
    255,274.32/352,264.56 = 140,530.56/x
  3. Step 3: Cross multiply
    255,274.32x = 352,264.56 × 140,530.56
  4. Step 4: Simplify right side
    255,274.32x = 49,503,935,884.95
  5. Step 5: Solve for x
    x = 49,503,935,884.95/255,274.32
  6. Step 6: Final answer
    x = 193,924.46

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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.