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Finding the Fourth Proportional to 172,086.40, 258,110.24 and 59,745.92

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Solution

The fourth proportional to 172,086.40, 258,110.24 and 59,745.92 is: 89,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,086.40 : 258,110.24 = 59,745.92 : x
  2. Step 2: Convert to fraction form
    172,086.40/258,110.24 = 59,745.92/x
  3. Step 3: Cross multiply
    172,086.40x = 258,110.24 × 59,745.92
  4. Step 4: Simplify right side
    172,086.40x = 15,421,033,750.22
  5. Step 5: Solve for x
    x = 15,421,033,750.22/172,086.40
  6. Step 6: Final answer
    x = 89,612.16

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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.