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Finding the Fourth Proportional to 98,640,431.80, 147,960,647.70 and 26,836,847.80

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Solution

The fourth proportional to 98,640,431.80, 147,960,647.70 and 26,836,847.80 is: 40,255,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,640,431.80 : 147,960,647.70 = 26,836,847.80 : x
  2. Step 2: Convert to fraction form
    98,640,431.80/147,960,647.70 = 26,836,847.80/x
  3. Step 3: Cross multiply
    98,640,431.80x = 147,960,647.70 × 26,836,847.80
  4. Step 4: Simplify right side
    98,640,431.80x = 3,970,797,382,714,320
  5. Step 5: Solve for x
    x = 3,970,797,382,714,320/98,640,431.80
  6. Step 6: Final answer
    x = 40,255,271.70

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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.