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Finding the Fourth Proportional to 106,576.59, 147,079.40 and 58,831.71

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Solution

The fourth proportional to 106,576.59, 147,079.40 and 58,831.71 is: 81,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,576.59 : 147,079.40 = 58,831.71 : x
  2. Step 2: Convert to fraction form
    106,576.59/147,079.40 = 58,831.71/x
  3. Step 3: Cross multiply
    106,576.59x = 147,079.40 × 58,831.71
  4. Step 4: Simplify right side
    106,576.59x = 8,652,932,313.62
  5. Step 5: Solve for x
    x = 8,652,932,313.62/106,576.59
  6. Step 6: Final answer
    x = 81,189.80

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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.