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Finding the Fourth Proportional to 85,803.93, 118,404.59 and 49,999.77

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Solution

The fourth proportional to 85,803.93, 118,404.59 and 49,999.77 is: 68,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,803.93 : 118,404.59 = 49,999.77 : x
  2. Step 2: Convert to fraction form
    85,803.93/118,404.59 = 49,999.77/x
  3. Step 3: Cross multiply
    85,803.93x = 118,404.59 × 49,999.77
  4. Step 4: Simplify right side
    85,803.93x = 5,920,202,016.95
  5. Step 5: Solve for x
    x = 5,920,202,016.95/85,803.93
  6. Step 6: Final answer
    x = 68,996.86

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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.