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Finding the Fourth Proportional to 120,598.40, 166,398.98 and 69,600.33

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Solution

The fourth proportional to 120,598.40, 166,398.98 and 69,600.33 is: 96,032.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,598.40 : 166,398.98 = 69,600.33 : x
  2. Step 2: Convert to fraction form
    120,598.40/166,398.98 = 69,600.33/x
  3. Step 3: Cross multiply
    120,598.40x = 166,398.98 × 69,600.33
  4. Step 4: Simplify right side
    120,598.40x = 11,581,422,947.67
  5. Step 5: Solve for x
    x = 11,581,422,947.67/120,598.40
  6. Step 6: Final answer
    x = 96,032.97

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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.