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Finding the Fourth Proportional to 243,987,442.40, 365,978,830.80 and 59,755,728.80

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Solution

The fourth proportional to 243,987,442.40, 365,978,830.80 and 59,755,728.80 is: 89,633,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,987,442.40 : 365,978,830.80 = 59,755,728.80 : x
  2. Step 2: Convert to fraction form
    243,987,442.40/365,978,830.80 = 59,755,728.80/x
  3. Step 3: Cross multiply
    243,987,442.40x = 365,978,830.80 × 59,755,728.80
  4. Step 4: Simplify right side
    243,987,442.40x = 21,869,331,759,825,888
  5. Step 5: Solve for x
    x = 21,869,331,759,825,888/243,987,442.40
  6. Step 6: Final answer
    x = 89,633,021.87

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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.