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Finding the Fourth Proportional to 157,628.40, 236,464.20 and 57,764.40

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Solution

The fourth proportional to 157,628.40, 236,464.20 and 57,764.40 is: 86,654.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,628.40 : 236,464.20 = 57,764.40 : x
  2. Step 2: Convert to fraction form
    157,628.40/236,464.20 = 57,764.40/x
  3. Step 3: Cross multiply
    157,628.40x = 236,464.20 × 57,764.40
  4. Step 4: Simplify right side
    157,628.40x = 13,659,212,634.48
  5. Step 5: Solve for x
    x = 13,659,212,634.48/157,628.40
  6. Step 6: Final answer
    x = 86,654.52

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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.