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Finding the Fourth Proportional to 110,640.40, 152,683.92 and 60,339.40

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Solution

The fourth proportional to 110,640.40, 152,683.92 and 60,339.40 is: 83,268.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,640.40 : 152,683.92 = 60,339.40 : x
  2. Step 2: Convert to fraction form
    110,640.40/152,683.92 = 60,339.40/x
  3. Step 3: Cross multiply
    110,640.40x = 152,683.92 × 60,339.40
  4. Step 4: Simplify right side
    110,640.40x = 9,212,856,122.45
  5. Step 5: Solve for x
    x = 9,212,856,122.45/110,640.40
  6. Step 6: Final answer
    x = 83,268.46

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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.