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Finding the Fourth Proportional to 172,697.60, 259,063.68 and 48,038.60

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Solution

The fourth proportional to 172,697.60, 259,063.68 and 48,038.60 is: 72,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,697.60 : 259,063.68 = 48,038.60 : x
  2. Step 2: Convert to fraction form
    172,697.60/259,063.68 = 48,038.60/x
  3. Step 3: Cross multiply
    172,697.60x = 259,063.68 × 48,038.60
  4. Step 4: Simplify right side
    172,697.60x = 12,445,056,498.05
  5. Step 5: Solve for x
    x = 12,445,056,498.05/172,697.60
  6. Step 6: Final answer
    x = 72,062.71

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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.