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Finding the Fourth Proportional to 172,238.76, 258,202.44 and 61,404.84

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Solution

The fourth proportional to 172,238.76, 258,202.44 and 61,404.84 is: 92,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,238.76 : 258,202.44 = 61,404.84 : x
  2. Step 2: Convert to fraction form
    172,238.76/258,202.44 = 61,404.84/x
  3. Step 3: Cross multiply
    172,238.76x = 258,202.44 × 61,404.84
  4. Step 4: Simplify right side
    172,238.76x = 15,854,879,515.81
  5. Step 5: Solve for x
    x = 15,854,879,515.81/172,238.76
  6. Step 6: Final answer
    x = 92,051.75

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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.