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Finding the Fourth Proportional to 254,677, 382,015.50 and 79,573

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Solution

The fourth proportional to 254,677, 382,015.50 and 79,573 is: 119,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,677 : 382,015.50 = 79,573 : x
  2. Step 2: Convert to fraction form
    254,677/382,015.50 = 79,573/x
  3. Step 3: Cross multiply
    254,677x = 382,015.50 × 79,573
  4. Step 4: Simplify right side
    254,677x = 30,398,119,381.50
  5. Step 5: Solve for x
    x = 30,398,119,381.50/254,677
  6. Step 6: Final answer
    x = 119,359.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.