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Finding the Fourth Proportional to 157,383.37, 217,186.19 and 85,764.01

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Solution

The fourth proportional to 157,383.37, 217,186.19 and 85,764.01 is: 118,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,383.37 : 217,186.19 = 85,764.01 : x
  2. Step 2: Convert to fraction form
    157,383.37/217,186.19 = 85,764.01/x
  3. Step 3: Cross multiply
    157,383.37x = 217,186.19 × 85,764.01
  4. Step 4: Simplify right side
    157,383.37x = 18,626,758,142.20
  5. Step 5: Solve for x
    x = 18,626,758,142.20/157,383.37
  6. Step 6: Final answer
    x = 118,352.77

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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.