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Finding the Fourth Proportional to 222,705.40, 333,798.90 and 89,519.80

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Solution

The fourth proportional to 222,705.40, 333,798.90 and 89,519.80 is: 134,175.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,705.40 : 333,798.90 = 89,519.80 : x
  2. Step 2: Convert to fraction form
    222,705.40/333,798.90 = 89,519.80/x
  3. Step 3: Cross multiply
    222,705.40x = 333,798.90 × 89,519.80
  4. Step 4: Simplify right side
    222,705.40x = 29,881,610,768.22
  5. Step 5: Solve for x
    x = 29,881,610,768.22/222,705.40
  6. Step 6: Final answer
    x = 134,175.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.