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Finding the Fourth Proportional to 106,069.73, 159,156.43 and 49,915.46

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Solution

The fourth proportional to 106,069.73, 159,156.43 and 49,915.46 is: 74,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,069.73 : 159,156.43 = 49,915.46 : x
  2. Step 2: Convert to fraction form
    106,069.73/159,156.43 = 49,915.46/x
  3. Step 3: Cross multiply
    106,069.73x = 159,156.43 × 49,915.46
  4. Step 4: Simplify right side
    106,069.73x = 7,944,366,688.51
  5. Step 5: Solve for x
    x = 7,944,366,688.51/106,069.73
  6. Step 6: Final answer
    x = 74,897.59

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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.