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Finding the Fourth Proportional to 224,346.74, 336,583.70 and 91,322.46

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Solution

The fourth proportional to 224,346.74, 336,583.70 and 91,322.46 is: 137,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,346.74 : 336,583.70 = 91,322.46 : x
  2. Step 2: Convert to fraction form
    224,346.74/336,583.70 = 91,322.46/x
  3. Step 3: Cross multiply
    224,346.74x = 336,583.70 × 91,322.46
  4. Step 4: Simplify right side
    224,346.74x = 30,737,651,479.90
  5. Step 5: Solve for x
    x = 30,737,651,479.90/224,346.74
  6. Step 6: Final answer
    x = 137,009.57

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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.