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Finding the Fourth Proportional to 157,551.84, 236,331 and 87,874.56

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Solution

The fourth proportional to 157,551.84, 236,331 and 87,874.56 is: 131,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,551.84 : 236,331 = 87,874.56 : x
  2. Step 2: Convert to fraction form
    157,551.84/236,331 = 87,874.56/x
  3. Step 3: Cross multiply
    157,551.84x = 236,331 × 87,874.56
  4. Step 4: Simplify right side
    157,551.84x = 20,767,482,639.36
  5. Step 5: Solve for x
    x = 20,767,482,639.36/157,551.84
  6. Step 6: Final answer
    x = 131,813.65

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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.