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Finding the Fourth Proportional to 270,233.79, 372,945.65 and 157,049.25

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Solution

The fourth proportional to 270,233.79, 372,945.65 and 157,049.25 is: 216,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,233.79 : 372,945.65 = 157,049.25 : x
  2. Step 2: Convert to fraction form
    270,233.79/372,945.65 = 157,049.25/x
  3. Step 3: Cross multiply
    270,233.79x = 372,945.65 × 157,049.25
  4. Step 4: Simplify right side
    270,233.79x = 58,570,833,838.02
  5. Step 5: Solve for x
    x = 58,570,833,838.02/270,233.79
  6. Step 6: Final answer
    x = 216,741.34

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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.