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Finding the Fourth Proportional to 316,348.64, 436,550.64 and 173,099.04

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Solution

The fourth proportional to 316,348.64, 436,550.64 and 173,099.04 is: 238,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,348.64 : 436,550.64 = 173,099.04 : x
  2. Step 2: Convert to fraction form
    316,348.64/436,550.64 = 173,099.04/x
  3. Step 3: Cross multiply
    316,348.64x = 436,550.64 × 173,099.04
  4. Step 4: Simplify right side
    316,348.64x = 75,566,496,695.39
  5. Step 5: Solve for x
    x = 75,566,496,695.39/316,348.64
  6. Step 6: Final answer
    x = 238,870.94

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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.