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Finding the Fourth Proportional to 108,718.09, 150,032.05 and 60,970.41

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Solution

The fourth proportional to 108,718.09, 150,032.05 and 60,970.41 is: 84,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,718.09 : 150,032.05 = 60,970.41 : x
  2. Step 2: Convert to fraction form
    108,718.09/150,032.05 = 60,970.41/x
  3. Step 3: Cross multiply
    108,718.09x = 150,032.05 × 60,970.41
  4. Step 4: Simplify right side
    108,718.09x = 9,147,515,449.21
  5. Step 5: Solve for x
    x = 9,147,515,449.21/108,718.09
  6. Step 6: Final answer
    x = 84,139.78

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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.