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Finding the Fourth Proportional to 373,139.53, 514,932.74 and 211,994.86

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Solution

The fourth proportional to 373,139.53, 514,932.74 and 211,994.86 is: 292,553.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,139.53 : 514,932.74 = 211,994.86 : x
  2. Step 2: Convert to fraction form
    373,139.53/514,932.74 = 211,994.86/x
  3. Step 3: Cross multiply
    373,139.53x = 514,932.74 × 211,994.86
  4. Step 4: Simplify right side
    373,139.53x = 109,163,092,838.39
  5. Step 5: Solve for x
    x = 109,163,092,838.39/373,139.53
  6. Step 6: Final answer
    x = 292,553.01

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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.