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Finding the Fourth Proportional to 222,063.12, 306,448.92 and 121,461.12

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Solution

The fourth proportional to 222,063.12, 306,448.92 and 121,461.12 is: 167,617.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,063.12 : 306,448.92 = 121,461.12 : x
  2. Step 2: Convert to fraction form
    222,063.12/306,448.92 = 121,461.12/x
  3. Step 3: Cross multiply
    222,063.12x = 306,448.92 × 121,461.12
  4. Step 4: Simplify right side
    222,063.12x = 37,221,629,045.99
  5. Step 5: Solve for x
    x = 37,221,629,045.99/222,063.12
  6. Step 6: Final answer
    x = 167,617.34

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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.