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Finding the Fourth Proportional to 108,666.91, 149,960.23 and 60,920.27

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Solution

The fourth proportional to 108,666.91, 149,960.23 and 60,920.27 is: 84,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,666.91 : 149,960.23 = 60,920.27 : x
  2. Step 2: Convert to fraction form
    108,666.91/149,960.23 = 60,920.27/x
  3. Step 3: Cross multiply
    108,666.91x = 149,960.23 × 60,920.27
  4. Step 4: Simplify right side
    108,666.91x = 9,135,617,700.86
  5. Step 5: Solve for x
    x = 9,135,617,700.86/108,666.91
  6. Step 6: Final answer
    x = 84,069.91

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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.