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Finding the Fourth Proportional to 185,993.92, 256,673.10 and 101,110.78

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Solution

The fourth proportional to 185,993.92, 256,673.10 and 101,110.78 is: 139,533.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,993.92 : 256,673.10 = 101,110.78 : x
  2. Step 2: Convert to fraction form
    185,993.92/256,673.10 = 101,110.78/x
  3. Step 3: Cross multiply
    185,993.92x = 256,673.10 × 101,110.78
  4. Step 4: Simplify right side
    185,993.92x = 25,952,417,346.02
  5. Step 5: Solve for x
    x = 25,952,417,346.02/185,993.92
  6. Step 6: Final answer
    x = 139,533.69

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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.