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Finding the Fourth Proportional to 89,332.80, 133,960.32 and 44,931.84

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Solution

The fourth proportional to 89,332.80, 133,960.32 and 44,931.84 is: 67,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,332.80 : 133,960.32 = 44,931.84 : x
  2. Step 2: Convert to fraction form
    89,332.80/133,960.32 = 44,931.84/x
  3. Step 3: Cross multiply
    89,332.80x = 133,960.32 × 44,931.84
  4. Step 4: Simplify right side
    89,332.80x = 6,019,083,664.59
  5. Step 5: Solve for x
    x = 6,019,083,664.59/89,332.80
  6. Step 6: Final answer
    x = 67,378.20

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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.