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Finding the Fourth Proportional to 66,658.26, 91,832.04 and 46,478.46

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Solution

The fourth proportional to 66,658.26, 91,832.04 and 46,478.46 is: 64,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,658.26 : 91,832.04 = 46,478.46 : x
  2. Step 2: Convert to fraction form
    66,658.26/91,832.04 = 46,478.46/x
  3. Step 3: Cross multiply
    66,658.26x = 91,832.04 × 46,478.46
  4. Step 4: Simplify right side
    66,658.26x = 4,268,211,797.86
  5. Step 5: Solve for x
    x = 4,268,211,797.86/66,658.26
  6. Step 6: Final answer
    x = 64,031.25

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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.