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Finding the Fourth Proportional to 73,077.66, 100,846.80 and 39,543.66

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Solution

The fourth proportional to 73,077.66, 100,846.80 and 39,543.66 is: 54,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,077.66 : 100,846.80 = 39,543.66 : x
  2. Step 2: Convert to fraction form
    73,077.66/100,846.80 = 39,543.66/x
  3. Step 3: Cross multiply
    73,077.66x = 100,846.80 × 39,543.66
  4. Step 4: Simplify right side
    73,077.66x = 3,987,851,571.29
  5. Step 5: Solve for x
    x = 3,987,851,571.29/73,077.66
  6. Step 6: Final answer
    x = 54,570.05

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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.