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Finding the Fourth Proportional to 316,335.87, 436,543.49 and 173,095.92

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Solution

The fourth proportional to 316,335.87, 436,543.49 and 173,095.92 is: 238,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,335.87 : 436,543.49 = 173,095.92 : x
  2. Step 2: Convert to fraction form
    316,335.87/436,543.49 = 173,095.92/x
  3. Step 3: Cross multiply
    316,335.87x = 436,543.49 × 173,095.92
  4. Step 4: Simplify right side
    316,335.87x = 75,563,896,156.08
  5. Step 5: Solve for x
    x = 75,563,896,156.08/316,335.87
  6. Step 6: Final answer
    x = 238,872.36

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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.