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Finding the Fourth Proportional to 91,185.60, 125,892.99 and 58,937.07

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Solution

The fourth proportional to 91,185.60, 125,892.99 and 58,937.07 is: 81,369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,185.60 : 125,892.99 = 58,937.07 : x
  2. Step 2: Convert to fraction form
    91,185.60/125,892.99 = 58,937.07/x
  3. Step 3: Cross multiply
    91,185.60x = 125,892.99 × 58,937.07
  4. Step 4: Simplify right side
    91,185.60x = 7,419,763,964.14
  5. Step 5: Solve for x
    x = 7,419,763,964.14/91,185.60
  6. Step 6: Final answer
    x = 81,369.91

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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.