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Finding the Fourth Proportional to 165,797.55, 248,488.29 and 70,916.38

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Solution

The fourth proportional to 165,797.55, 248,488.29 and 70,916.38 is: 106,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,797.55 : 248,488.29 = 70,916.38 : x
  2. Step 2: Convert to fraction form
    165,797.55/248,488.29 = 70,916.38/x
  3. Step 3: Cross multiply
    165,797.55x = 248,488.29 × 70,916.38
  4. Step 4: Simplify right side
    165,797.55x = 17,621,889,377.97
  5. Step 5: Solve for x
    x = 17,621,889,377.97/165,797.55
  6. Step 6: Final answer
    x = 106,285.58

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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.