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Finding the Fourth Proportional to 85,293.66, 117,704.92 and 47,055.60

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Solution

The fourth proportional to 85,293.66, 117,704.92 and 47,055.60 is: 64,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293.66 : 117,704.92 = 47,055.60 : x
  2. Step 2: Convert to fraction form
    85,293.66/117,704.92 = 47,055.60/x
  3. Step 3: Cross multiply
    85,293.66x = 117,704.92 × 47,055.60
  4. Step 4: Simplify right side
    85,293.66x = 5,538,675,633.55
  5. Step 5: Solve for x
    x = 5,538,675,633.55/85,293.66
  6. Step 6: Final answer
    x = 64,936.55

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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.