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Finding the Fourth Proportional to 457,180.56, 685,803.69 and 157,656.83

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Solution

The fourth proportional to 457,180.56, 685,803.69 and 157,656.83 is: 236,496.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,180.56 : 685,803.69 = 157,656.83 : x
  2. Step 2: Convert to fraction form
    457,180.56/685,803.69 = 157,656.83/x
  3. Step 3: Cross multiply
    457,180.56x = 685,803.69 × 157,656.83
  4. Step 4: Simplify right side
    457,180.56x = 108,121,632,338.68
  5. Step 5: Solve for x
    x = 108,121,632,338.68/457,180.56
  6. Step 6: Final answer
    x = 236,496.57

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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.