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Finding the Fourth Proportional to 70,357.86, 105,508.44 and 25,366.41

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Solution

The fourth proportional to 70,357.86, 105,508.44 and 25,366.41 is: 38,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,357.86 : 105,508.44 = 25,366.41 : x
  2. Step 2: Convert to fraction form
    70,357.86/105,508.44 = 25,366.41/x
  3. Step 3: Cross multiply
    70,357.86x = 105,508.44 × 25,366.41
  4. Step 4: Simplify right side
    70,357.86x = 2,676,370,347.50
  5. Step 5: Solve for x
    x = 2,676,370,347.50/70,357.86
  6. Step 6: Final answer
    x = 38,039.39

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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.