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Finding the Fourth Proportional to 83,205.70, 124,808.55 and 51,712.90

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Solution

The fourth proportional to 83,205.70, 124,808.55 and 51,712.90 is: 77,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,205.70 : 124,808.55 = 51,712.90 : x
  2. Step 2: Convert to fraction form
    83,205.70/124,808.55 = 51,712.90/x
  3. Step 3: Cross multiply
    83,205.70x = 124,808.55 × 51,712.90
  4. Step 4: Simplify right side
    83,205.70x = 6,454,212,065.30
  5. Step 5: Solve for x
    x = 6,454,212,065.30/83,205.70
  6. Step 6: Final answer
    x = 77,569.35

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