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Finding the Fourth Proportional to 84,651.51, 116,820.40 and 46,414.55

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Solution

The fourth proportional to 84,651.51, 116,820.40 and 46,414.55 is: 64,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,651.51 : 116,820.40 = 46,414.55 : x
  2. Step 2: Convert to fraction form
    84,651.51/116,820.40 = 46,414.55/x
  3. Step 3: Cross multiply
    84,651.51x = 116,820.40 × 46,414.55
  4. Step 4: Simplify right side
    84,651.51x = 5,422,166,296.82
  5. Step 5: Solve for x
    x = 5,422,166,296.82/84,651.51
  6. Step 6: Final answer
    x = 64,052.80

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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.