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Finding the Fourth Proportional to 172,493.88, 258,722.62 and 46,146.88

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Solution

The fourth proportional to 172,493.88, 258,722.62 and 46,146.88 is: 69,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,493.88 : 258,722.62 = 46,146.88 : x
  2. Step 2: Convert to fraction form
    172,493.88/258,722.62 = 46,146.88/x
  3. Step 3: Cross multiply
    172,493.88x = 258,722.62 × 46,146.88
  4. Step 4: Simplify right side
    172,493.88x = 11,939,241,698.43
  5. Step 5: Solve for x
    x = 11,939,241,698.43/172,493.88
  6. Step 6: Final answer
    x = 69,215.45

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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.