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Finding the Fourth Proportional to 110,963.82, 152,950.14 and 86,721.97

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Solution

The fourth proportional to 110,963.82, 152,950.14 and 86,721.97 is: 119,535.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,963.82 : 152,950.14 = 86,721.97 : x
  2. Step 2: Convert to fraction form
    110,963.82/152,950.14 = 86,721.97/x
  3. Step 3: Cross multiply
    110,963.82x = 152,950.14 × 86,721.97
  4. Step 4: Simplify right side
    110,963.82x = 13,264,137,018.97
  5. Step 5: Solve for x
    x = 13,264,137,018.97/110,963.82
  6. Step 6: Final answer
    x = 119,535.69

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1.5x scale

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.