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Finding the Fourth Proportional to 472,997.17, 709,073.79 and 173,407.81

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Solution

The fourth proportional to 472,997.17, 709,073.79 and 173,407.81 is: 259,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,997.17 : 709,073.79 = 173,407.81 : x
  2. Step 2: Convert to fraction form
    472,997.17/709,073.79 = 173,407.81/x
  3. Step 3: Cross multiply
    472,997.17x = 709,073.79 × 173,407.81
  4. Step 4: Simplify right side
    472,997.17x = 122,958,929,506.93
  5. Step 5: Solve for x
    x = 122,958,929,506.93/472,997.17
  6. Step 6: Final answer
    x = 259,957.01

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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.