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Finding the Fourth Proportional to 92,893.87, 128,193.79 and 54,654.86

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Solution

The fourth proportional to 92,893.87, 128,193.79 and 54,654.86 is: 75,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,893.87 : 128,193.79 = 54,654.86 : x
  2. Step 2: Convert to fraction form
    92,893.87/128,193.79 = 54,654.86/x
  3. Step 3: Cross multiply
    92,893.87x = 128,193.79 × 54,654.86
  4. Step 4: Simplify right side
    92,893.87x = 7,006,413,645.32
  5. Step 5: Solve for x
    x = 7,006,413,645.32/92,893.87
  6. Step 6: Final answer
    x = 75,423.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.