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Finding the Fourth Proportional to 119,490.91, 164,878.13 and 68,494.25

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Solution

The fourth proportional to 119,490.91, 164,878.13 and 68,494.25 is: 94,510.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,490.91 : 164,878.13 = 68,494.25 : x
  2. Step 2: Convert to fraction form
    119,490.91/164,878.13 = 68,494.25/x
  3. Step 3: Cross multiply
    119,490.91x = 164,878.13 × 68,494.25
  4. Step 4: Simplify right side
    119,490.91x = 11,293,204,439.18
  5. Step 5: Solve for x
    x = 11,293,204,439.18/119,490.91
  6. Step 6: Final answer
    x = 94,510.99

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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.