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Finding the Fourth Proportional to 344,086.11, 516,012.21 and 130,802.58

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Solution

The fourth proportional to 344,086.11, 516,012.21 and 130,802.58 is: 196,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,086.11 : 516,012.21 = 130,802.58 : x
  2. Step 2: Convert to fraction form
    344,086.11/516,012.21 = 130,802.58/x
  3. Step 3: Cross multiply
    344,086.11x = 516,012.21 × 130,802.58
  4. Step 4: Simplify right side
    344,086.11x = 67,495,728,379.50
  5. Step 5: Solve for x
    x = 67,495,728,379.50/344,086.11
  6. Step 6: Final answer
    x = 196,159.41

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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.