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Finding the Fourth Proportional to 157,911.54, 217,896.93 and 101,399.46

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Solution

The fourth proportional to 157,911.54, 217,896.93 and 101,399.46 is: 139,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,911.54 : 217,896.93 = 101,399.46 : x
  2. Step 2: Convert to fraction form
    157,911.54/217,896.93 = 101,399.46/x
  3. Step 3: Cross multiply
    157,911.54x = 217,896.93 × 101,399.46
  4. Step 4: Simplify right side
    157,911.54x = 22,094,631,037.66
  5. Step 5: Solve for x
    x = 22,094,631,037.66/157,911.54
  6. Step 6: Final answer
    x = 139,917.77

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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.