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Finding the Fourth Proportional to 56,649.65, 78,187.84 and 43,196.88

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Solution

The fourth proportional to 56,649.65, 78,187.84 and 43,196.88 is: 59,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,649.65 : 78,187.84 = 43,196.88 : x
  2. Step 2: Convert to fraction form
    56,649.65/78,187.84 = 43,196.88/x
  3. Step 3: Cross multiply
    56,649.65x = 78,187.84 × 43,196.88
  4. Step 4: Simplify right side
    56,649.65x = 3,377,470,633.95
  5. Step 5: Solve for x
    x = 3,377,470,633.95/56,649.65
  6. Step 6: Final answer
    x = 59,620.32

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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.