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Finding the Fourth Proportional to 51,308.91, 76,844.30 and 49,534.88

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Solution

The fourth proportional to 51,308.91, 76,844.30 and 49,534.88 is: 74,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,308.91 : 76,844.30 = 49,534.88 : x
  2. Step 2: Convert to fraction form
    51,308.91/76,844.30 = 49,534.88/x
  3. Step 3: Cross multiply
    51,308.91x = 76,844.30 × 49,534.88
  4. Step 4: Simplify right side
    51,308.91x = 3,806,472,547.29
  5. Step 5: Solve for x
    x = 3,806,472,547.29/51,308.91
  6. Step 6: Final answer
    x = 74,187.36

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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.