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Finding the Fourth Proportional to 172,909.14, 259,424.72 and 60,620.64

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Solution

The fourth proportional to 172,909.14, 259,424.72 and 60,620.64 is: 90,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,909.14 : 259,424.72 = 60,620.64 : x
  2. Step 2: Convert to fraction form
    172,909.14/259,424.72 = 60,620.64/x
  3. Step 3: Cross multiply
    172,909.14x = 259,424.72 × 60,620.64
  4. Step 4: Simplify right side
    172,909.14x = 15,726,492,558.22
  5. Step 5: Solve for x
    x = 15,726,492,558.22/172,909.14
  6. Step 6: Final answer
    x = 90,952.35

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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.