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Finding the Fourth Proportional to 108,357.95, 149,530.66 and 60,611.49

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Solution

The fourth proportional to 108,357.95, 149,530.66 and 60,611.49 is: 83,642.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,357.95 : 149,530.66 = 60,611.49 : x
  2. Step 2: Convert to fraction form
    108,357.95/149,530.66 = 60,611.49/x
  3. Step 3: Cross multiply
    108,357.95x = 149,530.66 × 60,611.49
  4. Step 4: Simplify right side
    108,357.95x = 9,063,275,951.75
  5. Step 5: Solve for x
    x = 9,063,275,951.75/108,357.95
  6. Step 6: Final answer
    x = 83,642.00

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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.