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Finding the Fourth Proportional to 224,345.74, 336,582.20 and 91,321.46

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Solution

The fourth proportional to 224,345.74, 336,582.20 and 91,321.46 is: 137,008.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,345.74 : 336,582.20 = 91,321.46 : x
  2. Step 2: Convert to fraction form
    224,345.74/336,582.20 = 91,321.46/x
  3. Step 3: Cross multiply
    224,345.74x = 336,582.20 × 91,321.46
  4. Step 4: Simplify right side
    224,345.74x = 30,737,178,983.77
  5. Step 5: Solve for x
    x = 30,737,178,983.77/224,345.74
  6. Step 6: Final answer
    x = 137,008.08

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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.