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Finding the Fourth Proportional to 140,603.01, 194,032.17 and 76,940.82

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Solution

The fourth proportional to 140,603.01, 194,032.17 and 76,940.82 is: 106,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,603.01 : 194,032.17 = 76,940.82 : x
  2. Step 2: Convert to fraction form
    140,603.01/194,032.17 = 76,940.82/x
  3. Step 3: Cross multiply
    140,603.01x = 194,032.17 × 76,940.82
  4. Step 4: Simplify right side
    140,603.01x = 14,928,994,266.18
  5. Step 5: Solve for x
    x = 14,928,994,266.18/140,603.01
  6. Step 6: Final answer
    x = 106,178.34

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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.