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Finding the Fourth Proportional to 104,654.32, 156,986.92 and 34,539.10

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Solution

The fourth proportional to 104,654.32, 156,986.92 and 34,539.10 is: 51,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,654.32 : 156,986.92 = 34,539.10 : x
  2. Step 2: Convert to fraction form
    104,654.32/156,986.92 = 34,539.10/x
  3. Step 3: Cross multiply
    104,654.32x = 156,986.92 × 34,539.10
  4. Step 4: Simplify right side
    104,654.32x = 5,422,186,928.57
  5. Step 5: Solve for x
    x = 5,422,186,928.57/104,654.32
  6. Step 6: Final answer
    x = 51,810.45

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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.