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Finding the Fourth Proportional to 172,835.70, 259,253.55 and 48,176.70

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Solution

The fourth proportional to 172,835.70, 259,253.55 and 48,176.70 is: 72,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,835.70 : 259,253.55 = 48,176.70 : x
  2. Step 2: Convert to fraction form
    172,835.70/259,253.55 = 48,176.70/x
  3. Step 3: Cross multiply
    172,835.70x = 259,253.55 × 48,176.70
  4. Step 4: Simplify right side
    172,835.70x = 12,489,980,502.29
  5. Step 5: Solve for x
    x = 12,489,980,502.29/172,835.70
  6. Step 6: Final answer
    x = 72,265.05

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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.