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Finding the Fourth Proportional to 94,643.20, 141,844.20 and 50,291.20

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Solution

The fourth proportional to 94,643.20, 141,844.20 and 50,291.20 is: 75,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,643.20 : 141,844.20 = 50,291.20 : x
  2. Step 2: Convert to fraction form
    94,643.20/141,844.20 = 50,291.20/x
  3. Step 3: Cross multiply
    94,643.20x = 141,844.20 × 50,291.20
  4. Step 4: Simplify right side
    94,643.20x = 7,133,515,031.04
  5. Step 5: Solve for x
    x = 7,133,515,031.04/94,643.20
  6. Step 6: Final answer
    x = 75,372.72

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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.