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Finding the Fourth Proportional to 222,858.72, 307,512.48 and 127,346.94

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Solution

The fourth proportional to 222,858.72, 307,512.48 and 127,346.94 is: 175,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,858.72 : 307,512.48 = 127,346.94 : x
  2. Step 2: Convert to fraction form
    222,858.72/307,512.48 = 127,346.94/x
  3. Step 3: Cross multiply
    222,858.72x = 307,512.48 × 127,346.94
  4. Step 4: Simplify right side
    222,858.72x = 39,160,773,339.81
  5. Step 5: Solve for x
    x = 39,160,773,339.81/222,858.72
  6. Step 6: Final answer
    x = 175,720.18

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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.