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Finding the Fourth Proportional to 109,848.80, 164,773.20 and 53,715.80

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Solution

The fourth proportional to 109,848.80, 164,773.20 and 53,715.80 is: 80,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,848.80 : 164,773.20 = 53,715.80 : x
  2. Step 2: Convert to fraction form
    109,848.80/164,773.20 = 53,715.80/x
  3. Step 3: Cross multiply
    109,848.80x = 164,773.20 × 53,715.80
  4. Step 4: Simplify right side
    109,848.80x = 8,850,924,256.56
  5. Step 5: Solve for x
    x = 8,850,924,256.56/109,848.80
  6. Step 6: Final answer
    x = 80,573.70

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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.