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Finding the Fourth Proportional to 85,349.01, 117,781.38 and 47,623.26

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Solution

The fourth proportional to 85,349.01, 117,781.38 and 47,623.26 is: 65,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349.01 : 117,781.38 = 47,623.26 : x
  2. Step 2: Convert to fraction form
    85,349.01/117,781.38 = 47,623.26/x
  3. Step 3: Cross multiply
    85,349.01x = 117,781.38 × 47,623.26
  4. Step 4: Simplify right side
    85,349.01x = 5,609,133,282.90
  5. Step 5: Solve for x
    x = 5,609,133,282.90/85,349.01
  6. Step 6: Final answer
    x = 65,719.96

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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.