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Finding the Fourth Proportional to 91,126.88, 125,754.92 and 50,838.24

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Solution

The fourth proportional to 91,126.88, 125,754.92 and 50,838.24 is: 70,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,126.88 : 125,754.92 = 50,838.24 : x
  2. Step 2: Convert to fraction form
    91,126.88/125,754.92 = 50,838.24/x
  3. Step 3: Cross multiply
    91,126.88x = 125,754.92 × 50,838.24
  4. Step 4: Simplify right side
    91,126.88x = 6,393,158,804.14
  5. Step 5: Solve for x
    x = 6,393,158,804.14/91,126.88
  6. Step 6: Final answer
    x = 70,156.67

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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.