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Finding the Fourth Proportional to 187,856.64, 281,816.64 and 63,168

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Solution

The fourth proportional to 187,856.64, 281,816.64 and 63,168 is: 94,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,856.64 : 281,816.64 = 63,168 : x
  2. Step 2: Convert to fraction form
    187,856.64/281,816.64 = 63,168/x
  3. Step 3: Cross multiply
    187,856.64x = 281,816.64 × 63,168
  4. Step 4: Simplify right side
    187,856.64x = 17,801,793,515.52
  5. Step 5: Solve for x
    x = 17,801,793,515.52/187,856.64
  6. Step 6: Final answer
    x = 94,762.65

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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.