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Finding the Fourth Proportional to 108,751.68, 150,063.84 and 60,998.40

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Solution

The fourth proportional to 108,751.68, 150,063.84 and 60,998.40 is: 84,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,751.68 : 150,063.84 = 60,998.40 : x
  2. Step 2: Convert to fraction form
    108,751.68/150,063.84 = 60,998.40/x
  3. Step 3: Cross multiply
    108,751.68x = 150,063.84 × 60,998.40
  4. Step 4: Simplify right side
    108,751.68x = 9,153,654,137.86
  5. Step 5: Solve for x
    x = 9,153,654,137.86/108,751.68
  6. Step 6: Final answer
    x = 84,170.23

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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.