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Finding the Fourth Proportional to 114,318.21, 157,744.16 and 65,921.92

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Solution

The fourth proportional to 114,318.21, 157,744.16 and 65,921.92 is: 90,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,318.21 : 157,744.16 = 65,921.92 : x
  2. Step 2: Convert to fraction form
    114,318.21/157,744.16 = 65,921.92/x
  3. Step 3: Cross multiply
    114,318.21x = 157,744.16 × 65,921.92
  4. Step 4: Simplify right side
    114,318.21x = 10,398,797,895.99
  5. Step 5: Solve for x
    x = 10,398,797,895.99/114,318.21
  6. Step 6: Final answer
    x = 90,963.62

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1.5x scale

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.