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Finding the Fourth Proportional to 90,007.98, 124,211.97 and 49,722.81

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Solution

The fourth proportional to 90,007.98, 124,211.97 and 49,722.81 is: 68,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,007.98 : 124,211.97 = 49,722.81 : x
  2. Step 2: Convert to fraction form
    90,007.98/124,211.97 = 49,722.81/x
  3. Step 3: Cross multiply
    90,007.98x = 124,211.97 × 49,722.81
  4. Step 4: Simplify right side
    90,007.98x = 6,176,168,184.04
  5. Step 5: Solve for x
    x = 6,176,168,184.04/90,007.98
  6. Step 6: Final answer
    x = 68,618.01

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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.