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Finding the Fourth Proportional to 222,608.79, 307,189.13 and 125,814.60

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Solution

The fourth proportional to 222,608.79, 307,189.13 and 125,814.60 is: 173,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,608.79 : 307,189.13 = 125,814.60 : x
  2. Step 2: Convert to fraction form
    222,608.79/307,189.13 = 125,814.60/x
  3. Step 3: Cross multiply
    222,608.79x = 307,189.13 × 125,814.60
  4. Step 4: Simplify right side
    222,608.79x = 38,648,876,886.23
  5. Step 5: Solve for x
    x = 38,648,876,886.23/222,608.79
  6. Step 6: Final answer
    x = 173,617.93

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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.