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Finding the Fourth Proportional to 457,021.77, 685,525.32 and 124,597.77

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Solution

The fourth proportional to 457,021.77, 685,525.32 and 124,597.77 is: 186,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,021.77 : 685,525.32 = 124,597.77 : x
  2. Step 2: Convert to fraction form
    457,021.77/685,525.32 = 124,597.77/x
  3. Step 3: Cross multiply
    457,021.77x = 685,525.32 × 124,597.77
  4. Step 4: Simplify right side
    457,021.77x = 85,414,926,150.54
  5. Step 5: Solve for x
    x = 85,414,926,150.54/457,021.77
  6. Step 6: Final answer
    x = 186,894.66

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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.