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Finding the Fourth Proportional to 316,906.14, 437,341.13 and 173,664.93

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Solution

The fourth proportional to 316,906.14, 437,341.13 and 173,664.93 is: 239,663.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,906.14 : 437,341.13 = 173,664.93 : x
  2. Step 2: Convert to fraction form
    316,906.14/437,341.13 = 173,664.93/x
  3. Step 3: Cross multiply
    316,906.14x = 437,341.13 × 173,664.93
  4. Step 4: Simplify right side
    316,906.14x = 75,950,816,727.57
  5. Step 5: Solve for x
    x = 75,950,816,727.57/316,906.14
  6. Step 6: Final answer
    x = 239,663.44

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1.5x scale

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.