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Finding the Fourth Proportional to 185,245.86, 255,639.54 and 100,362.93

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Solution

The fourth proportional to 185,245.86, 255,639.54 and 100,362.93 is: 138,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,245.86 : 255,639.54 = 100,362.93 : x
  2. Step 2: Convert to fraction form
    185,245.86/255,639.54 = 100,362.93/x
  3. Step 3: Cross multiply
    185,245.86x = 255,639.54 × 100,362.93
  4. Step 4: Simplify right side
    185,245.86x = 25,656,733,258.25
  5. Step 5: Solve for x
    x = 25,656,733,258.25/185,245.86
  6. Step 6: Final answer
    x = 138,500.98

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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.