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Finding the Fourth Proportional to 193,804.76, 290,531.10 and 69,116.60

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Solution

The fourth proportional to 193,804.76, 290,531.10 and 69,116.60 is: 103,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,804.76 : 290,531.10 = 69,116.60 : x
  2. Step 2: Convert to fraction form
    193,804.76/290,531.10 = 69,116.60/x
  3. Step 3: Cross multiply
    193,804.76x = 290,531.10 × 69,116.60
  4. Step 4: Simplify right side
    193,804.76x = 20,080,521,826.26
  5. Step 5: Solve for x
    x = 20,080,521,826.26/193,804.76
  6. Step 6: Final answer
    x = 103,612.12

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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.