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Finding the Fourth Proportional to 167,999.60, 251,653.80 and 115,468.40

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Solution

The fourth proportional to 167,999.60, 251,653.80 and 115,468.40 is: 172,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,999.60 : 251,653.80 = 115,468.40 : x
  2. Step 2: Convert to fraction form
    167,999.60/251,653.80 = 115,468.40/x
  3. Step 3: Cross multiply
    167,999.60x = 251,653.80 × 115,468.40
  4. Step 4: Simplify right side
    167,999.60x = 29,058,061,639.92
  5. Step 5: Solve for x
    x = 29,058,061,639.92/167,999.60
  6. Step 6: Final answer
    x = 172,965.06

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1.5x scale

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.