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Finding the Fourth Proportional to 105,568.49, 145,694.99 and 60,253.32

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Solution

The fourth proportional to 105,568.49, 145,694.99 and 60,253.32 is: 83,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,568.49 : 145,694.99 = 60,253.32 : x
  2. Step 2: Convert to fraction form
    105,568.49/145,694.99 = 60,253.32/x
  3. Step 3: Cross multiply
    105,568.49x = 145,694.99 × 60,253.32
  4. Step 4: Simplify right side
    105,568.49x = 8,778,606,854.87
  5. Step 5: Solve for x
    x = 8,778,606,854.87/105,568.49
  6. Step 6: Final answer
    x = 83,155.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.