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Finding the Fourth Proportional to 221,850.95, 332,810.14 and 81,598.64

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Solution

The fourth proportional to 221,850.95, 332,810.14 and 81,598.64 is: 122,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,850.95 : 332,810.14 = 81,598.64 : x
  2. Step 2: Convert to fraction form
    221,850.95/332,810.14 = 81,598.64/x
  3. Step 3: Cross multiply
    221,850.95x = 332,810.14 × 81,598.64
  4. Step 4: Simplify right side
    221,850.95x = 27,156,855,188.71
  5. Step 5: Solve for x
    x = 27,156,855,188.71/221,850.95
  6. Step 6: Final answer
    x = 122,410.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.