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Finding the Fourth Proportional to 94,882.91, 130,945.21 and 56,644.02

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Solution

The fourth proportional to 94,882.91, 130,945.21 and 56,644.02 is: 78,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,882.91 : 130,945.21 = 56,644.02 : x
  2. Step 2: Convert to fraction form
    94,882.91/130,945.21 = 56,644.02/x
  3. Step 3: Cross multiply
    94,882.91x = 130,945.21 × 56,644.02
  4. Step 4: Simplify right side
    94,882.91x = 7,417,262,952.53
  5. Step 5: Solve for x
    x = 7,417,262,952.53/94,882.91
  6. Step 6: Final answer
    x = 78,172.81

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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.