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Finding the Fourth Proportional to 171,607.61, 236,808.83 and 99,999.29

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Solution

The fourth proportional to 171,607.61, 236,808.83 and 99,999.29 is: 137,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,607.61 : 236,808.83 = 99,999.29 : x
  2. Step 2: Convert to fraction form
    171,607.61/236,808.83 = 99,999.29/x
  3. Step 3: Cross multiply
    171,607.61x = 236,808.83 × 99,999.29
  4. Step 4: Simplify right side
    171,607.61x = 23,680,714,365.73
  5. Step 5: Solve for x
    x = 23,680,714,365.73/171,607.61
  6. Step 6: Final answer
    x = 137,993.38

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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.