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Finding the Fourth Proportional to 344,370.66, 516,560.30 and 91,649.58

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Solution

The fourth proportional to 344,370.66, 516,560.30 and 91,649.58 is: 137,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,370.66 : 516,560.30 = 91,649.58 : x
  2. Step 2: Convert to fraction form
    344,370.66/516,560.30 = 91,649.58/x
  3. Step 3: Cross multiply
    344,370.66x = 516,560.30 × 91,649.58
  4. Step 4: Simplify right side
    344,370.66x = 47,342,537,362.02
  5. Step 5: Solve for x
    x = 47,342,537,362.02/344,370.66
  6. Step 6: Final answer
    x = 137,475.53

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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.