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Finding the Fourth Proportional to 157,980.54, 217,992.09 and 101,468.46

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Solution

The fourth proportional to 157,980.54, 217,992.09 and 101,468.46 is: 140,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,980.54 : 217,992.09 = 101,468.46 : x
  2. Step 2: Convert to fraction form
    157,980.54/217,992.09 = 101,468.46/x
  3. Step 3: Cross multiply
    157,980.54x = 217,992.09 × 101,468.46
  4. Step 4: Simplify right side
    157,980.54x = 22,119,321,664.48
  5. Step 5: Solve for x
    x = 22,119,321,664.48/157,980.54
  6. Step 6: Final answer
    x = 140,012.95

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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.