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Finding the Fourth Proportional to 222,899.40, 307,596.06 and 127,400.40

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Solution

The fourth proportional to 222,899.40, 307,596.06 and 127,400.40 is: 175,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,899.40 : 307,596.06 = 127,400.40 : x
  2. Step 2: Convert to fraction form
    222,899.40/307,596.06 = 127,400.40/x
  3. Step 3: Cross multiply
    222,899.40x = 307,596.06 × 127,400.40
  4. Step 4: Simplify right side
    222,899.40x = 39,187,861,082.42
  5. Step 5: Solve for x
    x = 39,187,861,082.42/222,899.40
  6. Step 6: Final answer
    x = 175,809.63

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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.