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Finding the Fourth Proportional to 181,806.76, 250,890.95 and 100,133.45

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Solution

The fourth proportional to 181,806.76, 250,890.95 and 100,133.45 is: 138,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,806.76 : 250,890.95 = 100,133.45 : x
  2. Step 2: Convert to fraction form
    181,806.76/250,890.95 = 100,133.45/x
  3. Step 3: Cross multiply
    181,806.76x = 250,890.95 × 100,133.45
  4. Step 4: Simplify right side
    181,806.76x = 25,122,575,896.61
  5. Step 5: Solve for x
    x = 25,122,575,896.61/181,806.76
  6. Step 6: Final answer
    x = 138,182.85

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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.