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Finding the Fourth Proportional to 119,907.61, 179,861.95 and 31,154.83

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Solution

The fourth proportional to 119,907.61, 179,861.95 and 31,154.83 is: 46,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,907.61 : 179,861.95 = 31,154.83 : x
  2. Step 2: Convert to fraction form
    119,907.61/179,861.95 = 31,154.83/x
  3. Step 3: Cross multiply
    119,907.61x = 179,861.95 × 31,154.83
  4. Step 4: Simplify right side
    119,907.61x = 5,603,568,065.01
  5. Step 5: Solve for x
    x = 5,603,568,065.01/119,907.61
  6. Step 6: Final answer
    x = 46,732.38

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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.