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Finding the Fourth Proportional to 139,504.50, 209,256.75 and 46,017.54

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Solution

The fourth proportional to 139,504.50, 209,256.75 and 46,017.54 is: 69,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,504.50 : 209,256.75 = 46,017.54 : x
  2. Step 2: Convert to fraction form
    139,504.50/209,256.75 = 46,017.54/x
  3. Step 3: Cross multiply
    139,504.50x = 209,256.75 × 46,017.54
  4. Step 4: Simplify right side
    139,504.50x = 9,629,480,863.40
  5. Step 5: Solve for x
    x = 9,629,480,863.40/139,504.50
  6. Step 6: Final answer
    x = 69,026.31

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Double scale
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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.