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Finding the Fourth Proportional to 172,835.80, 259,253.70 and 48,176.80

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Solution

The fourth proportional to 172,835.80, 259,253.70 and 48,176.80 is: 72,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,835.80 : 259,253.70 = 48,176.80 : x
  2. Step 2: Convert to fraction form
    172,835.80/259,253.70 = 48,176.80/x
  3. Step 3: Cross multiply
    172,835.80x = 259,253.70 × 48,176.80
  4. Step 4: Simplify right side
    172,835.80x = 12,490,013,654.16
  5. Step 5: Solve for x
    x = 12,490,013,654.16/172,835.80
  6. Step 6: Final answer
    x = 72,265.20

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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.