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Finding the Fourth Proportional to 172,992.15, 259,531.41 and 48,332.07

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Solution

The fourth proportional to 172,992.15, 259,531.41 and 48,332.07 is: 72,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,992.15 : 259,531.41 = 48,332.07 : x
  2. Step 2: Convert to fraction form
    172,992.15/259,531.41 = 48,332.07/x
  3. Step 3: Cross multiply
    172,992.15x = 259,531.41 × 48,332.07
  4. Step 4: Simplify right side
    172,992.15x = 12,543,690,275.32
  5. Step 5: Solve for x
    x = 12,543,690,275.32/172,992.15
  6. Step 6: Final answer
    x = 72,510.17

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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.