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Finding the Fourth Proportional to 84,059.80, 115,998.78 and 46,331.80

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Solution

The fourth proportional to 84,059.80, 115,998.78 and 46,331.80 is: 63,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,059.80 : 115,998.78 = 46,331.80 : x
  2. Step 2: Convert to fraction form
    84,059.80/115,998.78 = 46,331.80/x
  3. Step 3: Cross multiply
    84,059.80x = 115,998.78 × 46,331.80
  4. Step 4: Simplify right side
    84,059.80x = 5,374,432,275.20
  5. Step 5: Solve for x
    x = 5,374,432,275.20/84,059.80
  6. Step 6: Final answer
    x = 63,935.82

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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.