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Finding the Fourth Proportional to 98,894.91, 148,366.97 and 28,774.22

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Solution

The fourth proportional to 98,894.91, 148,366.97 and 28,774.22 is: 43,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,894.91 : 148,366.97 = 28,774.22 : x
  2. Step 2: Convert to fraction form
    98,894.91/148,366.97 = 28,774.22/x
  3. Step 3: Cross multiply
    98,894.91x = 148,366.97 × 28,774.22
  4. Step 4: Simplify right side
    98,894.91x = 4,269,142,949.81
  5. Step 5: Solve for x
    x = 4,269,142,949.81/98,894.91
  6. Step 6: Final answer
    x = 43,168.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.