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Finding the Fourth Proportional to 110,683.52, 152,738.70 and 65,376.17

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Solution

The fourth proportional to 110,683.52, 152,738.70 and 65,376.17 is: 90,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,683.52 : 152,738.70 = 65,376.17 : x
  2. Step 2: Convert to fraction form
    110,683.52/152,738.70 = 65,376.17/x
  3. Step 3: Cross multiply
    110,683.52x = 152,738.70 × 65,376.17
  4. Step 4: Simplify right side
    110,683.52x = 9,985,471,216.78
  5. Step 5: Solve for x
    x = 9,985,471,216.78/110,683.52
  6. Step 6: Final answer
    x = 90,216.42

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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.