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Finding the Fourth Proportional to 70,077.46, 105,053.68 and 25,693.87

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Solution

The fourth proportional to 70,077.46, 105,053.68 and 25,693.87 is: 38,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,077.46 : 105,053.68 = 25,693.87 : x
  2. Step 2: Convert to fraction form
    70,077.46/105,053.68 = 25,693.87/x
  3. Step 3: Cross multiply
    70,077.46x = 105,053.68 × 25,693.87
  4. Step 4: Simplify right side
    70,077.46x = 2,699,235,596.94
  5. Step 5: Solve for x
    x = 2,699,235,596.94/70,077.46
  6. Step 6: Final answer
    x = 38,517.89

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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.