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Finding the Fourth Proportional to 172,153.32, 258,244.86 and 47,494.32

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Solution

The fourth proportional to 172,153.32, 258,244.86 and 47,494.32 is: 71,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,153.32 : 258,244.86 = 47,494.32 : x
  2. Step 2: Convert to fraction form
    172,153.32/258,244.86 = 47,494.32/x
  3. Step 3: Cross multiply
    172,153.32x = 258,244.86 × 47,494.32
  4. Step 4: Simplify right side
    172,153.32x = 12,265,164,019.20
  5. Step 5: Solve for x
    x = 12,265,164,019.20/172,153.32
  6. Step 6: Final answer
    x = 71,245.59

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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.