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Finding the Fourth Proportional to 86,064.66, 118,803.09 and 54,227.64

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Solution

The fourth proportional to 86,064.66, 118,803.09 and 54,227.64 is: 74,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,064.66 : 118,803.09 = 54,227.64 : x
  2. Step 2: Convert to fraction form
    86,064.66/118,803.09 = 54,227.64/x
  3. Step 3: Cross multiply
    86,064.66x = 118,803.09 × 54,227.64
  4. Step 4: Simplify right side
    86,064.66x = 6,442,411,195.41
  5. Step 5: Solve for x
    x = 6,442,411,195.41/86,064.66
  6. Step 6: Final answer
    x = 74,855.48

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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.