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Finding the Fourth Proportional to 224,418.84, 336,337.32 and 91,143

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Solution

The fourth proportional to 224,418.84, 336,337.32 and 91,143 is: 136,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,418.84 : 336,337.32 = 91,143 : x
  2. Step 2: Convert to fraction form
    224,418.84/336,337.32 = 91,143/x
  3. Step 3: Cross multiply
    224,418.84x = 336,337.32 × 91,143
  4. Step 4: Simplify right side
    224,418.84x = 30,654,792,356.76
  5. Step 5: Solve for x
    x = 30,654,792,356.76/224,418.84
  6. Step 6: Final answer
    x = 136,596.34

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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.