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Finding the Fourth Proportional to 119,651.15, 179,419.62 and 69,745.63

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Solution

The fourth proportional to 119,651.15, 179,419.62 and 69,745.63 is: 104,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,651.15 : 179,419.62 = 69,745.63 : x
  2. Step 2: Convert to fraction form
    119,651.15/179,419.62 = 69,745.63/x
  3. Step 3: Cross multiply
    119,651.15x = 179,419.62 × 69,745.63
  4. Step 4: Simplify right side
    119,651.15x = 12,513,734,431.26
  5. Step 5: Solve for x
    x = 12,513,734,431.26/119,651.15
  6. Step 6: Final answer
    x = 104,585.16

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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.