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Finding the Fourth Proportional to 108,587.89, 149,851.19 and 60,841.58

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Solution

The fourth proportional to 108,587.89, 149,851.19 and 60,841.58 is: 83,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,587.89 : 149,851.19 = 60,841.58 : x
  2. Step 2: Convert to fraction form
    108,587.89/149,851.19 = 60,841.58/x
  3. Step 3: Cross multiply
    108,587.89x = 149,851.19 × 60,841.58
  4. Step 4: Simplify right side
    108,587.89x = 9,117,183,239.12
  5. Step 5: Solve for x
    x = 9,117,183,239.12/108,587.89
  6. Step 6: Final answer
    x = 83,961.33

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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.