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Finding the Fourth Proportional to 70,583.31, 105,781.51 and 51,775.29

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Solution

The fourth proportional to 70,583.31, 105,781.51 and 51,775.29 is: 77,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,583.31 : 105,781.51 = 51,775.29 : x
  2. Step 2: Convert to fraction form
    70,583.31/105,781.51 = 51,775.29/x
  3. Step 3: Cross multiply
    70,583.31x = 105,781.51 × 51,775.29
  4. Step 4: Simplify right side
    70,583.31x = 5,476,868,227.45
  5. Step 5: Solve for x
    x = 5,476,868,227.45/70,583.31
  6. Step 6: Final answer
    x = 77,594.38

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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.