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Finding the Fourth Proportional to 80,000.86, 110,400.48 and 44,193.36

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Solution

The fourth proportional to 80,000.86, 110,400.48 and 44,193.36 is: 60,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,000.86 : 110,400.48 = 44,193.36 : x
  2. Step 2: Convert to fraction form
    80,000.86/110,400.48 = 44,193.36/x
  3. Step 3: Cross multiply
    80,000.86x = 110,400.48 × 44,193.36
  4. Step 4: Simplify right side
    80,000.86x = 4,878,968,156.81
  5. Step 5: Solve for x
    x = 4,878,968,156.81/80,000.86
  6. Step 6: Final answer
    x = 60,986.45

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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.