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Finding the Fourth Proportional to 319,883.17, 441,438.92 and 176,652.94

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Solution

The fourth proportional to 319,883.17, 441,438.92 and 176,652.94 is: 243,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,883.17 : 441,438.92 = 176,652.94 : x
  2. Step 2: Convert to fraction form
    319,883.17/441,438.92 = 176,652.94/x
  3. Step 3: Cross multiply
    319,883.17x = 441,438.92 × 176,652.94
  4. Step 4: Simplify right side
    319,883.17x = 77,981,482,165.16
  5. Step 5: Solve for x
    x = 77,981,482,165.16/319,883.17
  6. Step 6: Final answer
    x = 243,781.13

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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.