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Finding the Fourth Proportional to 85,174.72, 117,464.71 and 53,346.58

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Solution

The fourth proportional to 85,174.72, 117,464.71 and 53,346.58 is: 73,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,174.72 : 117,464.71 = 53,346.58 : x
  2. Step 2: Convert to fraction form
    85,174.72/117,464.71 = 53,346.58/x
  3. Step 3: Cross multiply
    85,174.72x = 117,464.71 × 53,346.58
  4. Step 4: Simplify right side
    85,174.72x = 6,266,340,549.19
  5. Step 5: Solve for x
    x = 6,266,340,549.19/85,174.72
  6. Step 6: Final answer
    x = 73,570.43

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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.