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Finding the Fourth Proportional to 126,593.60, 189,724.28 and 93,157.12

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Solution

The fourth proportional to 126,593.60, 189,724.28 and 93,157.12 is: 139,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,593.60 : 189,724.28 = 93,157.12 : x
  2. Step 2: Convert to fraction form
    126,593.60/189,724.28 = 93,157.12/x
  3. Step 3: Cross multiply
    126,593.60x = 189,724.28 × 93,157.12
  4. Step 4: Simplify right side
    126,593.60x = 17,674,167,518.87
  5. Step 5: Solve for x
    x = 17,674,167,518.87/126,593.60
  6. Step 6: Final answer
    x = 139,613.44

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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.