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Finding the Fourth Proportional to 29,897,978.80, 44,846,968.20 and 29,331,108.40

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Solution

The fourth proportional to 29,897,978.80, 44,846,968.20 and 29,331,108.40 is: 43,996,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,897,978.80 : 44,846,968.20 = 29,331,108.40 : x
  2. Step 2: Convert to fraction form
    29,897,978.80/44,846,968.20 = 29,331,108.40/x
  3. Step 3: Cross multiply
    29,897,978.80x = 44,846,968.20 × 29,331,108.40
  4. Step 4: Simplify right side
    29,897,978.80x = 1,315,411,285,685,553
  5. Step 5: Solve for x
    x = 1,315,411,285,685,553/29,897,978.80
  6. Step 6: Final answer
    x = 43,996,662.60

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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.