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Finding the Fourth Proportional to 110,690.88, 152,792.86 and 65,369.05

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Solution

The fourth proportional to 110,690.88, 152,792.86 and 65,369.05 is: 90,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,690.88 : 152,792.86 = 65,369.05 : x
  2. Step 2: Convert to fraction form
    110,690.88/152,792.86 = 65,369.05/x
  3. Step 3: Cross multiply
    110,690.88x = 152,792.86 × 65,369.05
  4. Step 4: Simplify right side
    110,690.88x = 9,987,923,014.17
  5. Step 5: Solve for x
    x = 9,987,923,014.17/110,690.88
  6. Step 6: Final answer
    x = 90,232.57

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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.