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Finding the Fourth Proportional to 108,930.60, 146,589.75 and 108,930.60

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Solution

The fourth proportional to 108,930.60, 146,589.75 and 108,930.60 is: 146,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,930.60 : 146,589.75 = 108,930.60 : x
  2. Step 2: Convert to fraction form
    108,930.60/146,589.75 = 108,930.60/x
  3. Step 3: Cross multiply
    108,930.60x = 146,589.75 × 108,930.60
  4. Step 4: Simplify right side
    108,930.60x = 15,968,109,421.35
  5. Step 5: Solve for x
    x = 15,968,109,421.35/108,930.60
  6. Step 6: Final answer
    x = 146,589.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.