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Finding the Fourth Proportional to 88,877.80, 133,403.10 and 53,885.80

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Solution

The fourth proportional to 88,877.80, 133,403.10 and 53,885.80 is: 80,881.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,877.80 : 133,403.10 = 53,885.80 : x
  2. Step 2: Convert to fraction form
    88,877.80/133,403.10 = 53,885.80/x
  3. Step 3: Cross multiply
    88,877.80x = 133,403.10 × 53,885.80
  4. Step 4: Simplify right side
    88,877.80x = 7,188,532,765.98
  5. Step 5: Solve for x
    x = 7,188,532,765.98/88,877.80
  6. Step 6: Final answer
    x = 80,881.08

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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.