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Finding the Fourth Proportional to 158,382.63, 218,485.17 and 97,933.95

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Solution

The fourth proportional to 158,382.63, 218,485.17 and 97,933.95 is: 135,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,382.63 : 218,485.17 = 97,933.95 : x
  2. Step 2: Convert to fraction form
    158,382.63/218,485.17 = 97,933.95/x
  3. Step 3: Cross multiply
    158,382.63x = 218,485.17 × 97,933.95
  4. Step 4: Simplify right side
    158,382.63x = 21,397,115,714.52
  5. Step 5: Solve for x
    x = 21,397,115,714.52/158,382.63
  6. Step 6: Final answer
    x = 135,097.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.