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Finding the Fourth Proportional to 457,153.60, 685,652.64 and 124,651.84

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Solution

The fourth proportional to 457,153.60, 685,652.64 and 124,651.84 is: 186,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,153.60 : 685,652.64 = 124,651.84 : x
  2. Step 2: Convert to fraction form
    457,153.60/685,652.64 = 124,651.84/x
  3. Step 3: Cross multiply
    457,153.60x = 685,652.64 × 124,651.84
  4. Step 4: Simplify right side
    457,153.60x = 85,467,863,176.86
  5. Step 5: Solve for x
    x = 85,467,863,176.86/457,153.60
  6. Step 6: Final answer
    x = 186,956.56

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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.