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Finding the Fourth Proportional to 91,222.71, 136,831.05 and 41,302.80

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Solution

The fourth proportional to 91,222.71, 136,831.05 and 41,302.80 is: 61,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,222.71 : 136,831.05 = 41,302.80 : x
  2. Step 2: Convert to fraction form
    91,222.71/136,831.05 = 41,302.80/x
  3. Step 3: Cross multiply
    91,222.71x = 136,831.05 × 41,302.80
  4. Step 4: Simplify right side
    91,222.71x = 5,651,505,491.94
  5. Step 5: Solve for x
    x = 5,651,505,491.94/91,222.71
  6. Step 6: Final answer
    x = 61,952.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.