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Finding the Fourth Proportional to 101,273.74, 152,005.95 and 51,389.65

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Solution

The fourth proportional to 101,273.74, 152,005.95 and 51,389.65 is: 77,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,273.74 : 152,005.95 = 51,389.65 : x
  2. Step 2: Convert to fraction form
    101,273.74/152,005.95 = 51,389.65/x
  3. Step 3: Cross multiply
    101,273.74x = 152,005.95 × 51,389.65
  4. Step 4: Simplify right side
    101,273.74x = 7,811,532,568.42
  5. Step 5: Solve for x
    x = 7,811,532,568.42/101,273.74
  6. Step 6: Final answer
    x = 77,132.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.