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Finding the Fourth Proportional to 90,182.52, 124,450.92 and 49,894.56

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Solution

The fourth proportional to 90,182.52, 124,450.92 and 49,894.56 is: 68,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,182.52 : 124,450.92 = 49,894.56 : x
  2. Step 2: Convert to fraction form
    90,182.52/124,450.92 = 49,894.56/x
  3. Step 3: Cross multiply
    90,182.52x = 124,450.92 × 49,894.56
  4. Step 4: Simplify right side
    90,182.52x = 6,209,423,895.00
  5. Step 5: Solve for x
    x = 6,209,423,895.00/90,182.52
  6. Step 6: Final answer
    x = 68,853.96

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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.