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Finding the Fourth Proportional to 114,270.40, 157,701.90 and 65,880.19

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Solution

The fourth proportional to 114,270.40, 157,701.90 and 65,880.19 is: 90,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,270.40 : 157,701.90 = 65,880.19 : x
  2. Step 2: Convert to fraction form
    114,270.40/157,701.90 = 65,880.19/x
  3. Step 3: Cross multiply
    114,270.40x = 157,701.90 × 65,880.19
  4. Step 4: Simplify right side
    114,270.40x = 10,389,431,135.36
  5. Step 5: Solve for x
    x = 10,389,431,135.36/114,270.40
  6. Step 6: Final answer
    x = 90,919.71

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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.