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Finding the Fourth Proportional to 103,693.51, 155,539.24 and 47,517.68

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Solution

The fourth proportional to 103,693.51, 155,539.24 and 47,517.68 is: 71,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.51 : 155,539.24 = 47,517.68 : x
  2. Step 2: Convert to fraction form
    103,693.51/155,539.24 = 47,517.68/x
  3. Step 3: Cross multiply
    103,693.51x = 155,539.24 × 47,517.68
  4. Step 4: Simplify right side
    103,693.51x = 7,390,863,833.76
  5. Step 5: Solve for x
    x = 7,390,863,833.76/103,693.51
  6. Step 6: Final answer
    x = 71,276.05

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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.