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Finding the Fourth Proportional to 83,946.98, 115,843.97 and 45,705.87

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Solution

The fourth proportional to 83,946.98, 115,843.97 and 45,705.87 is: 63,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,946.98 : 115,843.97 = 45,705.87 : x
  2. Step 2: Convert to fraction form
    83,946.98/115,843.97 = 45,705.87/x
  3. Step 3: Cross multiply
    83,946.98x = 115,843.97 × 45,705.87
  4. Step 4: Simplify right side
    83,946.98x = 5,294,749,547.37
  5. Step 5: Solve for x
    x = 5,294,749,547.37/83,946.98
  6. Step 6: Final answer
    x = 63,072.54

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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.