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Finding the Fourth Proportional to 67,258.48, 100,809.96 and 35,699.28

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Solution

The fourth proportional to 67,258.48, 100,809.96 and 35,699.28 is: 53,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,258.48 : 100,809.96 = 35,699.28 : x
  2. Step 2: Convert to fraction form
    67,258.48/100,809.96 = 35,699.28/x
  3. Step 3: Cross multiply
    67,258.48x = 100,809.96 × 35,699.28
  4. Step 4: Simplify right side
    67,258.48x = 3,598,842,988.83
  5. Step 5: Solve for x
    x = 3,598,842,988.83/67,258.48
  6. Step 6: Final answer
    x = 53,507.65

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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.