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Finding the Fourth Proportional to 186,397.63, 279,395.32 and 91,517.47

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Solution

The fourth proportional to 186,397.63, 279,395.32 and 91,517.47 is: 137,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,397.63 : 279,395.32 = 91,517.47 : x
  2. Step 2: Convert to fraction form
    186,397.63/279,395.32 = 91,517.47/x
  3. Step 3: Cross multiply
    186,397.63x = 279,395.32 × 91,517.47
  4. Step 4: Simplify right side
    186,397.63x = 25,569,552,816.24
  5. Step 5: Solve for x
    x = 25,569,552,816.24/186,397.63
  6. Step 6: Final answer
    x = 137,177.46

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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.