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Finding the Fourth Proportional to 29,135,319.20, 43,702,978.80 and 9,964,368.80

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Solution

The fourth proportional to 29,135,319.20, 43,702,978.80 and 9,964,368.80 is: 14,946,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,135,319.20 : 43,702,978.80 = 9,964,368.80 : x
  2. Step 2: Convert to fraction form
    29,135,319.20/43,702,978.80 = 9,964,368.80/x
  3. Step 3: Cross multiply
    29,135,319.20x = 43,702,978.80 × 9,964,368.80
  4. Step 4: Simplify right side
    29,135,319.20x = 435,472,598,421,781.44
  5. Step 5: Solve for x
    x = 435,472,598,421,781.44/29,135,319.20
  6. Step 6: Final answer
    x = 14,946,553.20

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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.