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Finding the Fourth Proportional to 83,348, 115,022.76 and 45,624.80

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Solution

The fourth proportional to 83,348, 115,022.76 and 45,624.80 is: 62,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,348 : 115,022.76 = 45,624.80 : x
  2. Step 2: Convert to fraction form
    83,348/115,022.76 = 45,624.80/x
  3. Step 3: Cross multiply
    83,348x = 115,022.76 × 45,624.80
  4. Step 4: Simplify right side
    83,348x = 5,247,890,420.45
  5. Step 5: Solve for x
    x = 5,247,890,420.45/83,348
  6. Step 6: Final answer
    x = 62,963.60

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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.