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Finding the Fourth Proportional to 122,684,047.20, 183,869,773.20 and 65,203,855.20

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Solution

The fourth proportional to 122,684,047.20, 183,869,773.20 and 65,203,855.20 is: 97,722,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,684,047.20 : 183,869,773.20 = 65,203,855.20 : x
  2. Step 2: Convert to fraction form
    122,684,047.20/183,869,773.20 = 65,203,855.20/x
  3. Step 3: Cross multiply
    122,684,047.20x = 183,869,773.20 × 65,203,855.20
  4. Step 4: Simplify right side
    122,684,047.20x = 11,989,018,067,389,640
  5. Step 5: Solve for x
    x = 11,989,018,067,389,640/122,684,047.20
  6. Step 6: Final answer
    x = 97,722,714.09

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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.