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Finding the Fourth Proportional to 115,561.36, 173,366.34 and 65,664.64

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Solution

The fourth proportional to 115,561.36, 173,366.34 and 65,664.64 is: 98,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,561.36 : 173,366.34 = 65,664.64 : x
  2. Step 2: Convert to fraction form
    115,561.36/173,366.34 = 65,664.64/x
  3. Step 3: Cross multiply
    115,561.36x = 173,366.34 × 65,664.64
  4. Step 4: Simplify right side
    115,561.36x = 11,384,038,304.22
  5. Step 5: Solve for x
    x = 11,384,038,304.22/115,561.36
  6. Step 6: Final answer
    x = 98,510.77

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1.5x scale

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.