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Finding the Fourth Proportional to 90,252.74, 124,544.72 and 49,963.66

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Solution

The fourth proportional to 90,252.74, 124,544.72 and 49,963.66 is: 68,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,252.74 : 124,544.72 = 49,963.66 : x
  2. Step 2: Convert to fraction form
    90,252.74/124,544.72 = 49,963.66/x
  3. Step 3: Cross multiply
    90,252.74x = 124,544.72 × 49,963.66
  4. Step 4: Simplify right side
    90,252.74x = 6,222,710,044.88
  5. Step 5: Solve for x
    x = 6,222,710,044.88/90,252.74
  6. Step 6: Final answer
    x = 68,947.60

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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.