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Finding the Fourth Proportional to 222,531.48, 307,105.74 and 127,068.84

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Solution

The fourth proportional to 222,531.48, 307,105.74 and 127,068.84 is: 175,362.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,531.48 : 307,105.74 = 127,068.84 : x
  2. Step 2: Convert to fraction form
    222,531.48/307,105.74 = 127,068.84/x
  3. Step 3: Cross multiply
    222,531.48x = 307,105.74 × 127,068.84
  4. Step 4: Simplify right side
    222,531.48x = 39,023,570,139.14
  5. Step 5: Solve for x
    x = 39,023,570,139.14/222,531.48
  6. Step 6: Final answer
    x = 175,362.02

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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.