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Finding the Fourth Proportional to 124,528.44, 171,796.88 and 86,824.56

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Solution

The fourth proportional to 124,528.44, 171,796.88 and 86,824.56 is: 119,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,528.44 : 171,796.88 = 86,824.56 : x
  2. Step 2: Convert to fraction form
    124,528.44/171,796.88 = 86,824.56/x
  3. Step 3: Cross multiply
    124,528.44x = 171,796.88 × 86,824.56
  4. Step 4: Simplify right side
    124,528.44x = 14,916,188,515.37
  5. Step 5: Solve for x
    x = 14,916,188,515.37/124,528.44
  6. Step 6: Final answer
    x = 119,781.38

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1.5x scale

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.