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Finding the Fourth Proportional to 222,231.93, 306,681.92 and 130,406.13

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Solution

The fourth proportional to 222,231.93, 306,681.92 and 130,406.13 is: 179,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,231.93 : 306,681.92 = 130,406.13 : x
  2. Step 2: Convert to fraction form
    222,231.93/306,681.92 = 130,406.13/x
  3. Step 3: Cross multiply
    222,231.93x = 306,681.92 × 130,406.13
  4. Step 4: Simplify right side
    222,231.93x = 39,993,201,669.39
  5. Step 5: Solve for x
    x = 39,993,201,669.39/222,231.93
  6. Step 6: Final answer
    x = 179,961.55

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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.