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Finding the Fourth Proportional to 89,252.74, 133,831.99 and 47,155.42

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Solution

The fourth proportional to 89,252.74, 133,831.99 and 47,155.42 is: 70,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,252.74 : 133,831.99 = 47,155.42 : x
  2. Step 2: Convert to fraction form
    89,252.74/133,831.99 = 47,155.42/x
  3. Step 3: Cross multiply
    89,252.74x = 133,831.99 × 47,155.42
  4. Step 4: Simplify right side
    89,252.74x = 6,310,903,697.89
  5. Step 5: Solve for x
    x = 6,310,903,697.89/89,252.74
  6. Step 6: Final answer
    x = 70,708.23

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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.