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Finding the Fourth Proportional to 101,885.80, 152,827.98 and 55,433.96

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Solution

The fourth proportional to 101,885.80, 152,827.98 and 55,433.96 is: 83,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,885.80 : 152,827.98 = 55,433.96 : x
  2. Step 2: Convert to fraction form
    101,885.80/152,827.98 = 55,433.96/x
  3. Step 3: Cross multiply
    101,885.80x = 152,827.98 × 55,433.96
  4. Step 4: Simplify right side
    101,885.80x = 8,471,860,130.20
  5. Step 5: Solve for x
    x = 8,471,860,130.20/101,885.80
  6. Step 6: Final answer
    x = 83,150.55

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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.