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Finding the Fourth Proportional to 222,174.95, 306,593.84 and 126,712.40

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Solution

The fourth proportional to 222,174.95, 306,593.84 and 126,712.40 is: 174,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,174.95 : 306,593.84 = 126,712.40 : x
  2. Step 2: Convert to fraction form
    222,174.95/306,593.84 = 126,712.40/x
  3. Step 3: Cross multiply
    222,174.95x = 306,593.84 × 126,712.40
  4. Step 4: Simplify right side
    222,174.95x = 38,849,240,075.43
  5. Step 5: Solve for x
    x = 38,849,240,075.43/222,174.95
  6. Step 6: Final answer
    x = 174,858.78

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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.