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Finding the Fourth Proportional to 344,295.16, 516,401.64 and 91,594.20

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Solution

The fourth proportional to 344,295.16, 516,401.64 and 91,594.20 is: 137,380.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,295.16 : 516,401.64 = 91,594.20 : x
  2. Step 2: Convert to fraction form
    344,295.16/516,401.64 = 91,594.20/x
  3. Step 3: Cross multiply
    344,295.16x = 516,401.64 × 91,594.20
  4. Step 4: Simplify right side
    344,295.16x = 47,299,395,094.49
  5. Step 5: Solve for x
    x = 47,299,395,094.49/344,295.16
  6. Step 6: Final answer
    x = 137,380.37

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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.