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Finding the Fourth Proportional to 74,985,802.80, 112,478,704.20 and 26,463,271.20

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Solution

The fourth proportional to 74,985,802.80, 112,478,704.20 and 26,463,271.20 is: 39,694,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985,802.80 : 112,478,704.20 = 26,463,271.20 : x
  2. Step 2: Convert to fraction form
    74,985,802.80/112,478,704.20 = 26,463,271.20/x
  3. Step 3: Cross multiply
    74,985,802.80x = 112,478,704.20 × 26,463,271.20
  4. Step 4: Simplify right side
    74,985,802.80x = 2,976,554,453,469,179
  5. Step 5: Solve for x
    x = 2,976,554,453,469,179/74,985,802.80
  6. Step 6: Final answer
    x = 39,694,906.80

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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.