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Finding the Fourth Proportional to 172,666.93, 259,035.55 and 72,827.49

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Solution

The fourth proportional to 172,666.93, 259,035.55 and 72,827.49 is: 109,256.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,666.93 : 259,035.55 = 72,827.49 : x
  2. Step 2: Convert to fraction form
    172,666.93/259,035.55 = 72,827.49/x
  3. Step 3: Cross multiply
    172,666.93x = 259,035.55 × 72,827.49
  4. Step 4: Simplify right side
    172,666.93x = 18,864,908,927.27
  5. Step 5: Solve for x
    x = 18,864,908,927.27/172,666.93
  6. Step 6: Final answer
    x = 109,256.06

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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.