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Finding the Fourth Proportional to 108,464.80, 149,680.27 and 60,718.54

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Solution

The fourth proportional to 108,464.80, 149,680.27 and 60,718.54 is: 83,790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,464.80 : 149,680.27 = 60,718.54 : x
  2. Step 2: Convert to fraction form
    108,464.80/149,680.27 = 60,718.54/x
  3. Step 3: Cross multiply
    108,464.80x = 149,680.27 × 60,718.54
  4. Step 4: Simplify right side
    108,464.80x = 9,088,367,461.21
  5. Step 5: Solve for x
    x = 9,088,367,461.21/108,464.80
  6. Step 6: Final answer
    x = 83,790.94

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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.