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Finding the Fourth Proportional to 108,414.48, 149,620.14 and 60,666.80

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Solution

The fourth proportional to 108,414.48, 149,620.14 and 60,666.80 is: 83,724.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,414.48 : 149,620.14 = 60,666.80 : x
  2. Step 2: Convert to fraction form
    108,414.48/149,620.14 = 60,666.80/x
  3. Step 3: Cross multiply
    108,414.48x = 149,620.14 × 60,666.80
  4. Step 4: Simplify right side
    108,414.48x = 9,076,975,109.35
  5. Step 5: Solve for x
    x = 9,076,975,109.35/108,414.48
  6. Step 6: Final answer
    x = 83,724.75

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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.