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Finding the Fourth Proportional to 351,294.81, 484,788.05 and 190,149.82

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Solution

The fourth proportional to 351,294.81, 484,788.05 and 190,149.82 is: 262,407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,294.81 : 484,788.05 = 190,149.82 : x
  2. Step 2: Convert to fraction form
    351,294.81/484,788.05 = 190,149.82/x
  3. Step 3: Cross multiply
    351,294.81x = 484,788.05 × 190,149.82
  4. Step 4: Simplify right side
    351,294.81x = 92,182,360,445.65
  5. Step 5: Solve for x
    x = 92,182,360,445.65/351,294.81
  6. Step 6: Final answer
    x = 262,407.41

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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.