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Finding the Fourth Proportional to 91,123.92, 125,679.87 and 59,303.07

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Solution

The fourth proportional to 91,123.92, 125,679.87 and 59,303.07 is: 81,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,123.92 : 125,679.87 = 59,303.07 : x
  2. Step 2: Convert to fraction form
    91,123.92/125,679.87 = 59,303.07/x
  3. Step 3: Cross multiply
    91,123.92x = 125,679.87 × 59,303.07
  4. Step 4: Simplify right side
    91,123.92x = 7,453,202,128.20
  5. Step 5: Solve for x
    x = 7,453,202,128.20/91,123.92
  6. Step 6: Final answer
    x = 81,791.94

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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.