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Finding the Fourth Proportional to 82,874.45, 114,366.74 and 45,148.70

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Solution

The fourth proportional to 82,874.45, 114,366.74 and 45,148.70 is: 62,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,874.45 : 114,366.74 = 45,148.70 : x
  2. Step 2: Convert to fraction form
    82,874.45/114,366.74 = 45,148.70/x
  3. Step 3: Cross multiply
    82,874.45x = 114,366.74 × 45,148.70
  4. Step 4: Simplify right side
    82,874.45x = 5,163,509,694.41
  5. Step 5: Solve for x
    x = 5,163,509,694.41/82,874.45
  6. Step 6: Final answer
    x = 62,305.20

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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.