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Finding the Fourth Proportional to 84,205.56, 116,203.78 and 46,479.81

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Solution

The fourth proportional to 84,205.56, 116,203.78 and 46,479.81 is: 64,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,205.56 : 116,203.78 = 46,479.81 : x
  2. Step 2: Convert to fraction form
    84,205.56/116,203.78 = 46,479.81/x
  3. Step 3: Cross multiply
    84,205.56x = 116,203.78 × 46,479.81
  4. Step 4: Simplify right side
    84,205.56x = 5,401,129,615.68
  5. Step 5: Solve for x
    x = 5,401,129,615.68/84,205.56
  6. Step 6: Final answer
    x = 64,142.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.