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Finding the Fourth Proportional to 235,419.15, 353,128.73 and 164,560.35

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Solution

The fourth proportional to 235,419.15, 353,128.73 and 164,560.35 is: 246,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,419.15 : 353,128.73 = 164,560.35 : x
  2. Step 2: Convert to fraction form
    235,419.15/353,128.73 = 164,560.35/x
  3. Step 3: Cross multiply
    235,419.15x = 353,128.73 × 164,560.35
  4. Step 4: Simplify right side
    235,419.15x = 58,110,986,581.05
  5. Step 5: Solve for x
    x = 58,110,986,581.05/235,419.15
  6. Step 6: Final answer
    x = 246,840.53

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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.