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Finding the Fourth Proportional to 487,377.92, 731,076.90 and 150,418.77

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Solution

The fourth proportional to 487,377.92, 731,076.90 and 150,418.77 is: 225,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,377.92 : 731,076.90 = 150,418.77 : x
  2. Step 2: Convert to fraction form
    487,377.92/731,076.90 = 150,418.77/x
  3. Step 3: Cross multiply
    487,377.92x = 731,076.90 × 150,418.77
  4. Step 4: Simplify right side
    487,377.92x = 109,967,688,073.41
  5. Step 5: Solve for x
    x = 109,967,688,073.41/487,377.92
  6. Step 6: Final answer
    x = 225,631.25

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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.