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Finding the Fourth Proportional to 98,435.57, 135,851.29 and 60,220.58

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Solution

The fourth proportional to 98,435.57, 135,851.29 and 60,220.58 is: 83,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,435.57 : 135,851.29 = 60,220.58 : x
  2. Step 2: Convert to fraction form
    98,435.57/135,851.29 = 60,220.58/x
  3. Step 3: Cross multiply
    98,435.57x = 135,851.29 × 60,220.58
  4. Step 4: Simplify right side
    98,435.57x = 8,181,042,986.48
  5. Step 5: Solve for x
    x = 8,181,042,986.48/98,435.57
  6. Step 6: Final answer
    x = 83,110.64

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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.