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Finding the Fourth Proportional to 58,869.40, 88,476.90 and 51,266.20

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Solution

The fourth proportional to 58,869.40, 88,476.90 and 51,266.20 is: 77,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,869.40 : 88,476.90 = 51,266.20 : x
  2. Step 2: Convert to fraction form
    58,869.40/88,476.90 = 51,266.20/x
  3. Step 3: Cross multiply
    58,869.40x = 88,476.90 × 51,266.20
  4. Step 4: Simplify right side
    58,869.40x = 4,535,874,450.78
  5. Step 5: Solve for x
    x = 4,535,874,450.78/58,869.40
  6. Step 6: Final answer
    x = 77,049.78

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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.