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Finding the Fourth Proportional to 91,007.56, 125,596.74 and 55,199.08

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Solution

The fourth proportional to 91,007.56, 125,596.74 and 55,199.08 is: 76,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,007.56 : 125,596.74 = 55,199.08 : x
  2. Step 2: Convert to fraction form
    91,007.56/125,596.74 = 55,199.08/x
  3. Step 3: Cross multiply
    91,007.56x = 125,596.74 × 55,199.08
  4. Step 4: Simplify right side
    91,007.56x = 6,932,824,499.00
  5. Step 5: Solve for x
    x = 6,932,824,499.00/91,007.56
  6. Step 6: Final answer
    x = 76,178.56

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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.