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Finding the Fourth Proportional to 85,089.84, 127,618.29 and 32,486.82

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Solution

The fourth proportional to 85,089.84, 127,618.29 and 32,486.82 is: 48,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.84 : 127,618.29 = 32,486.82 : x
  2. Step 2: Convert to fraction form
    85,089.84/127,618.29 = 32,486.82/x
  3. Step 3: Cross multiply
    85,089.84x = 127,618.29 × 32,486.82
  4. Step 4: Simplify right side
    85,089.84x = 4,145,912,415.94
  5. Step 5: Solve for x
    x = 4,145,912,415.94/85,089.84
  6. Step 6: Final answer
    x = 48,723.94

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1.5x scale

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.