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Finding the Fourth Proportional to 99,335.76, 137,085.06 and 54,014.04

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Solution

The fourth proportional to 99,335.76, 137,085.06 and 54,014.04 is: 74,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,335.76 : 137,085.06 = 54,014.04 : x
  2. Step 2: Convert to fraction form
    99,335.76/137,085.06 = 54,014.04/x
  3. Step 3: Cross multiply
    99,335.76x = 137,085.06 × 54,014.04
  4. Step 4: Simplify right side
    99,335.76x = 7,404,517,914.24
  5. Step 5: Solve for x
    x = 7,404,517,914.24/99,335.76
  6. Step 6: Final answer
    x = 74,540.31

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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.