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Finding the Fourth Proportional to 83,911.36, 115,800.96 and 46,189.12

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Solution

The fourth proportional to 83,911.36, 115,800.96 and 46,189.12 is: 63,742.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,911.36 : 115,800.96 = 46,189.12 : x
  2. Step 2: Convert to fraction form
    83,911.36/115,800.96 = 46,189.12/x
  3. Step 3: Cross multiply
    83,911.36x = 115,800.96 × 46,189.12
  4. Step 4: Simplify right side
    83,911.36x = 5,348,744,437.56
  5. Step 5: Solve for x
    x = 5,348,744,437.56/83,911.36
  6. Step 6: Final answer
    x = 63,742.79

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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.