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Finding the Fourth Proportional to 97,892.71, 135,087.42 and 55,451.59

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Solution

The fourth proportional to 97,892.71, 135,087.42 and 55,451.59 is: 76,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,892.71 : 135,087.42 = 55,451.59 : x
  2. Step 2: Convert to fraction form
    97,892.71/135,087.42 = 55,451.59/x
  3. Step 3: Cross multiply
    97,892.71x = 135,087.42 × 55,451.59
  4. Step 4: Simplify right side
    97,892.71x = 7,490,812,228.00
  5. Step 5: Solve for x
    x = 7,490,812,228.00/97,892.71
  6. Step 6: Final answer
    x = 76,520.63

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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.