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Finding the Fourth Proportional to 101,766.76, 152,457.47 and 67,930.75

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Solution

The fourth proportional to 101,766.76, 152,457.47 and 67,930.75 is: 101,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,766.76 : 152,457.47 = 67,930.75 : x
  2. Step 2: Convert to fraction form
    101,766.76/152,457.47 = 67,930.75/x
  3. Step 3: Cross multiply
    101,766.76x = 152,457.47 × 67,930.75
  4. Step 4: Simplify right side
    101,766.76x = 10,356,550,597.18
  5. Step 5: Solve for x
    x = 10,356,550,597.18/101,766.76
  6. Step 6: Final answer
    x = 101,767.52

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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.