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Finding the Fourth Proportional to 114,156.87, 157,532.41 and 63,168.72

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Solution

The fourth proportional to 114,156.87, 157,532.41 and 63,168.72 is: 87,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,156.87 : 157,532.41 = 63,168.72 : x
  2. Step 2: Convert to fraction form
    114,156.87/157,532.41 = 63,168.72/x
  3. Step 3: Cross multiply
    114,156.87x = 157,532.41 × 63,168.72
  4. Step 4: Simplify right side
    114,156.87x = 9,951,119,594.71
  5. Step 5: Solve for x
    x = 9,951,119,594.71/114,156.87
  6. Step 6: Final answer
    x = 87,170.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.