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Finding the Fourth Proportional to 222,900.90, 307,598.13 and 127,401.90

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Solution

The fourth proportional to 222,900.90, 307,598.13 and 127,401.90 is: 175,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,900.90 : 307,598.13 = 127,401.90 : x
  2. Step 2: Convert to fraction form
    222,900.90/307,598.13 = 127,401.90/x
  3. Step 3: Cross multiply
    222,900.90x = 307,598.13 × 127,401.90
  4. Step 4: Simplify right side
    222,900.90x = 39,188,586,198.45
  5. Step 5: Solve for x
    x = 39,188,586,198.45/222,900.90
  6. Step 6: Final answer
    x = 175,811.70

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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.