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Finding the Fourth Proportional to 83,295.76, 114,948.12 and 45,570.80

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Solution

The fourth proportional to 83,295.76, 114,948.12 and 45,570.80 is: 62,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,295.76 : 114,948.12 = 45,570.80 : x
  2. Step 2: Convert to fraction form
    83,295.76/114,948.12 = 45,570.80/x
  3. Step 3: Cross multiply
    83,295.76x = 114,948.12 × 45,570.80
  4. Step 4: Simplify right side
    83,295.76x = 5,238,277,786.90
  5. Step 5: Solve for x
    x = 5,238,277,786.90/83,295.76
  6. Step 6: Final answer
    x = 62,887.69

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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.