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Finding the Fourth Proportional to 105,593.91, 145,719.60 and 63,152.44

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Solution

The fourth proportional to 105,593.91, 145,719.60 and 63,152.44 is: 87,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,593.91 : 145,719.60 = 63,152.44 : x
  2. Step 2: Convert to fraction form
    105,593.91/145,719.60 = 63,152.44/x
  3. Step 3: Cross multiply
    105,593.91x = 145,719.60 × 63,152.44
  4. Step 4: Simplify right side
    105,593.91x = 9,202,547,694.70
  5. Step 5: Solve for x
    x = 9,202,547,694.70/105,593.91
  6. Step 6: Final answer
    x = 87,150.37

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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.