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Finding the Fourth Proportional to 222,552.48, 307,112.40 and 121,948.32

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Solution

The fourth proportional to 222,552.48, 307,112.40 and 121,948.32 is: 168,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,552.48 : 307,112.40 = 121,948.32 : x
  2. Step 2: Convert to fraction form
    222,552.48/307,112.40 = 121,948.32/x
  3. Step 3: Cross multiply
    222,552.48x = 307,112.40 × 121,948.32
  4. Step 4: Simplify right side
    222,552.48x = 37,451,841,231.17
  5. Step 5: Solve for x
    x = 37,451,841,231.17/222,552.48
  6. Step 6: Final answer
    x = 168,283.19

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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.