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Finding the Fourth Proportional to 100,615.48, 150,719.39 and 46,503.29

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Solution

The fourth proportional to 100,615.48, 150,719.39 and 46,503.29 is: 69,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,615.48 : 150,719.39 = 46,503.29 : x
  2. Step 2: Convert to fraction form
    100,615.48/150,719.39 = 46,503.29/x
  3. Step 3: Cross multiply
    100,615.48x = 150,719.39 × 46,503.29
  4. Step 4: Simplify right side
    100,615.48x = 7,008,947,501.79
  5. Step 5: Solve for x
    x = 7,008,947,501.79/100,615.48
  6. Step 6: Final answer
    x = 69,660.73

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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.