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Finding the Fourth Proportional to 171,818.84, 257,765.34 and 51,865.86

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Solution

The fourth proportional to 171,818.84, 257,765.34 and 51,865.86 is: 77,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,818.84 : 257,765.34 = 51,865.86 : x
  2. Step 2: Convert to fraction form
    171,818.84/257,765.34 = 51,865.86/x
  3. Step 3: Cross multiply
    171,818.84x = 257,765.34 × 51,865.86
  4. Step 4: Simplify right side
    171,818.84x = 13,369,221,037.29
  5. Step 5: Solve for x
    x = 13,369,221,037.29/171,818.84
  6. Step 6: Final answer
    x = 77,809.98

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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.