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Finding the Fourth Proportional to 111,123.86, 153,334.44 and 67,493.73

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Solution

The fourth proportional to 111,123.86, 153,334.44 and 67,493.73 is: 93,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,123.86 : 153,334.44 = 67,493.73 : x
  2. Step 2: Convert to fraction form
    111,123.86/153,334.44 = 67,493.73/x
  3. Step 3: Cross multiply
    111,123.86x = 153,334.44 × 67,493.73
  4. Step 4: Simplify right side
    111,123.86x = 10,349,112,886.79
  5. Step 5: Solve for x
    x = 10,349,112,886.79/111,123.86
  6. Step 6: Final answer
    x = 93,131.33

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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.