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Finding the Fourth Proportional to 60,112, 90,109.40 and 25,061.68

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Solution

The fourth proportional to 60,112, 90,109.40 and 25,061.68 is: 37,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,112 : 90,109.40 = 25,061.68 : x
  2. Step 2: Convert to fraction form
    60,112/90,109.40 = 25,061.68/x
  3. Step 3: Cross multiply
    60,112x = 90,109.40 × 25,061.68
  4. Step 4: Simplify right side
    60,112x = 2,258,292,947.79
  5. Step 5: Solve for x
    x = 2,258,292,947.79/60,112
  6. Step 6: Final answer
    x = 37,568.09

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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.