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Finding the Fourth Proportional to 115,265, 159,065.70 and 62,273

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Solution

The fourth proportional to 115,265, 159,065.70 and 62,273 is: 85,936.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,265 : 159,065.70 = 62,273 : x
  2. Step 2: Convert to fraction form
    115,265/159,065.70 = 62,273/x
  3. Step 3: Cross multiply
    115,265x = 159,065.70 × 62,273
  4. Step 4: Simplify right side
    115,265x = 9,905,498,336.10
  5. Step 5: Solve for x
    x = 9,905,498,336.10/115,265
  6. Step 6: Final answer
    x = 85,936.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.