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Finding the Fourth Proportional to 109,602.68, 151,236.52 and 61,198.70

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Solution

The fourth proportional to 109,602.68, 151,236.52 and 61,198.70 is: 84,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,602.68 : 151,236.52 = 61,198.70 : x
  2. Step 2: Convert to fraction form
    109,602.68/151,236.52 = 61,198.70/x
  3. Step 3: Cross multiply
    109,602.68x = 151,236.52 × 61,198.70
  4. Step 4: Simplify right side
    109,602.68x = 9,255,477,507.34
  5. Step 5: Solve for x
    x = 9,255,477,507.34/109,602.68
  6. Step 6: Final answer
    x = 84,445.73

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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.