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Finding the Fourth Proportional to 453,756.73, 680,476.43 and 133,823.74

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Solution

The fourth proportional to 453,756.73, 680,476.43 and 133,823.74 is: 200,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,756.73 : 680,476.43 = 133,823.74 : x
  2. Step 2: Convert to fraction form
    453,756.73/680,476.43 = 133,823.74/x
  3. Step 3: Cross multiply
    453,756.73x = 680,476.43 × 133,823.74
  4. Step 4: Simplify right side
    453,756.73x = 91,063,900,844.45
  5. Step 5: Solve for x
    x = 91,063,900,844.45/453,756.73
  6. Step 6: Final answer
    x = 200,688.82

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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.