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Finding the Fourth Proportional to 157,216.26, 216,951.62 and 85,596.54

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Solution

The fourth proportional to 157,216.26, 216,951.62 and 85,596.54 is: 118,119.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,216.26 : 216,951.62 = 85,596.54 : x
  2. Step 2: Convert to fraction form
    157,216.26/216,951.62 = 85,596.54/x
  3. Step 3: Cross multiply
    157,216.26x = 216,951.62 × 85,596.54
  4. Step 4: Simplify right side
    157,216.26x = 18,570,308,019.39
  5. Step 5: Solve for x
    x = 18,570,308,019.39/157,216.26
  6. Step 6: Final answer
    x = 118,119.51

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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.