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Finding the Fourth Proportional to 441,090.31, 661,639.53 and 125,547.13

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Solution

The fourth proportional to 441,090.31, 661,639.53 and 125,547.13 is: 188,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,090.31 : 661,639.53 = 125,547.13 : x
  2. Step 2: Convert to fraction form
    441,090.31/661,639.53 = 125,547.13/x
  3. Step 3: Cross multiply
    441,090.31x = 661,639.53 × 125,547.13
  4. Step 4: Simplify right side
    441,090.31x = 83,066,944,086.05
  5. Step 5: Solve for x
    x = 83,066,944,086.05/441,090.31
  6. Step 6: Final answer
    x = 188,321.85

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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.