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Finding the Fourth Proportional to 357,076.11, 535,753.59 and 157,256.07

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Solution

The fourth proportional to 357,076.11, 535,753.59 and 157,256.07 is: 235,945.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,076.11 : 535,753.59 = 157,256.07 : x
  2. Step 2: Convert to fraction form
    357,076.11/535,753.59 = 157,256.07/x
  3. Step 3: Cross multiply
    357,076.11x = 535,753.59 × 157,256.07
  4. Step 4: Simplify right side
    357,076.11x = 84,250,504,051.79
  5. Step 5: Solve for x
    x = 84,250,504,051.79/357,076.11
  6. Step 6: Final answer
    x = 235,945.51

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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.