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Finding the Fourth Proportional to 260,034.60, 390,051.90 and 73,046.10

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Solution

The fourth proportional to 260,034.60, 390,051.90 and 73,046.10 is: 109,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,034.60 : 390,051.90 = 73,046.10 : x
  2. Step 2: Convert to fraction form
    260,034.60/390,051.90 = 73,046.10/x
  3. Step 3: Cross multiply
    260,034.60x = 390,051.90 × 73,046.10
  4. Step 4: Simplify right side
    260,034.60x = 28,491,770,092.59
  5. Step 5: Solve for x
    x = 28,491,770,092.59/260,034.60
  6. Step 6: Final answer
    x = 109,569.15

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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.