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Finding the Fourth Proportional to 104,046.66, 143,441.40 and 65,787.06

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Solution

The fourth proportional to 104,046.66, 143,441.40 and 65,787.06 is: 90,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,046.66 : 143,441.40 = 65,787.06 : x
  2. Step 2: Convert to fraction form
    104,046.66/143,441.40 = 65,787.06/x
  3. Step 3: Cross multiply
    104,046.66x = 143,441.40 × 65,787.06
  4. Step 4: Simplify right side
    104,046.66x = 9,436,587,988.28
  5. Step 5: Solve for x
    x = 9,436,587,988.28/104,046.66
  6. Step 6: Final answer
    x = 90,695.73

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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.