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Finding the Fourth Proportional to 110,728.75, 152,813.89 and 62,997.48

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Solution

The fourth proportional to 110,728.75, 152,813.89 and 62,997.48 is: 86,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,728.75 : 152,813.89 = 62,997.48 : x
  2. Step 2: Convert to fraction form
    110,728.75/152,813.89 = 62,997.48/x
  3. Step 3: Cross multiply
    110,728.75x = 152,813.89 × 62,997.48
  4. Step 4: Simplify right side
    110,728.75x = 9,626,889,979.00
  5. Step 5: Solve for x
    x = 9,626,889,979.00/110,728.75
  6. Step 6: Final answer
    x = 86,941.20

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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.