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Finding the Fourth Proportional to 172,089.48, 237,486.46 and 100,472.52

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Solution

The fourth proportional to 172,089.48, 237,486.46 and 100,472.52 is: 138,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,089.48 : 237,486.46 = 100,472.52 : x
  2. Step 2: Convert to fraction form
    172,089.48/237,486.46 = 100,472.52/x
  3. Step 3: Cross multiply
    172,089.48x = 237,486.46 × 100,472.52
  4. Step 4: Simplify right side
    172,089.48x = 23,860,863,102.08
  5. Step 5: Solve for x
    x = 23,860,863,102.08/172,089.48
  6. Step 6: Final answer
    x = 138,653.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.