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Finding the Fourth Proportional to 92,795.58, 128,028.42 and 54,542.88

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Solution

The fourth proportional to 92,795.58, 128,028.42 and 54,542.88 is: 75,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,795.58 : 128,028.42 = 54,542.88 : x
  2. Step 2: Convert to fraction form
    92,795.58/128,028.42 = 54,542.88/x
  3. Step 3: Cross multiply
    92,795.58x = 128,028.42 × 54,542.88
  4. Step 4: Simplify right side
    92,795.58x = 6,983,038,748.65
  5. Step 5: Solve for x
    x = 6,983,038,748.65/92,795.58
  6. Step 6: Final answer
    x = 75,251.85

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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.