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Finding the Fourth Proportional to 303,969.66, 455,963.80 and 104,287.26

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Solution

The fourth proportional to 303,969.66, 455,963.80 and 104,287.26 is: 156,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,969.66 : 455,963.80 = 104,287.26 : x
  2. Step 2: Convert to fraction form
    303,969.66/455,963.80 = 104,287.26/x
  3. Step 3: Cross multiply
    303,969.66x = 455,963.80 × 104,287.26
  4. Step 4: Simplify right side
    303,969.66x = 47,551,215,361.19
  5. Step 5: Solve for x
    x = 47,551,215,361.19/303,969.66
  6. Step 6: Final answer
    x = 156,434.08

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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.