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Finding the Fourth Proportional to 99,997.99, 137,994.55 and 59,164.23

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Solution

The fourth proportional to 99,997.99, 137,994.55 and 59,164.23 is: 81,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,997.99 : 137,994.55 = 59,164.23 : x
  2. Step 2: Convert to fraction form
    99,997.99/137,994.55 = 59,164.23/x
  3. Step 3: Cross multiply
    99,997.99x = 137,994.55 × 59,164.23
  4. Step 4: Simplify right side
    99,997.99x = 8,164,341,221.09
  5. Step 5: Solve for x
    x = 8,164,341,221.09/99,997.99
  6. Step 6: Final answer
    x = 81,645.06

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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.