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Finding the Fourth Proportional to 212,797.66, 319,243.14 and 63,049.72

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Solution

The fourth proportional to 212,797.66, 319,243.14 and 63,049.72 is: 94,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,797.66 : 319,243.14 = 63,049.72 : x
  2. Step 2: Convert to fraction form
    212,797.66/319,243.14 = 63,049.72/x
  3. Step 3: Cross multiply
    212,797.66x = 319,243.14 × 63,049.72
  4. Step 4: Simplify right side
    212,797.66x = 20,128,190,588.92
  5. Step 5: Solve for x
    x = 20,128,190,588.92/212,797.66
  6. Step 6: Final answer
    x = 94,588.40

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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.