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Finding the Fourth Proportional to 139,751.20, 209,626.84 and 46,264.24

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Solution

The fourth proportional to 139,751.20, 209,626.84 and 46,264.24 is: 69,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,751.20 : 209,626.84 = 46,264.24 : x
  2. Step 2: Convert to fraction form
    139,751.20/209,626.84 = 46,264.24/x
  3. Step 3: Cross multiply
    139,751.20x = 209,626.84 × 46,264.24
  4. Step 4: Simplify right side
    139,751.20x = 9,698,226,436.20
  5. Step 5: Solve for x
    x = 9,698,226,436.20/139,751.20
  6. Step 6: Final answer
    x = 69,396.37

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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.