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Finding the Fourth Proportional to 83,699.26, 115,505.79 and 45,973.51

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Solution

The fourth proportional to 83,699.26, 115,505.79 and 45,973.51 is: 63,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,699.26 : 115,505.79 = 45,973.51 : x
  2. Step 2: Convert to fraction form
    83,699.26/115,505.79 = 45,973.51/x
  3. Step 3: Cross multiply
    83,699.26x = 115,505.79 × 45,973.51
  4. Step 4: Simplify right side
    83,699.26x = 5,310,206,591.62
  5. Step 5: Solve for x
    x = 5,310,206,591.62/83,699.26
  6. Step 6: Final answer
    x = 63,443.89

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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.