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Finding the Fourth Proportional to 316,444.55, 436,694.00 and 173,213.66

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Solution

The fourth proportional to 316,444.55, 436,694.00 and 173,213.66 is: 239,035.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,444.55 : 436,694.00 = 173,213.66 : x
  2. Step 2: Convert to fraction form
    316,444.55/436,694.00 = 173,213.66/x
  3. Step 3: Cross multiply
    316,444.55x = 436,694.00 × 173,213.66
  4. Step 4: Simplify right side
    316,444.55x = 75,641,366,265.71
  5. Step 5: Solve for x
    x = 75,641,366,265.71/316,444.55
  6. Step 6: Final answer
    x = 239,035.14

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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.