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Finding the Fourth Proportional to 10,916,682.30, 16,375,023.45 and 10,208,094.30

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Solution

The fourth proportional to 10,916,682.30, 16,375,023.45 and 10,208,094.30 is: 15,312,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916,682.30 : 16,375,023.45 = 10,208,094.30 : x
  2. Step 2: Convert to fraction form
    10,916,682.30/16,375,023.45 = 10,208,094.30/x
  3. Step 3: Cross multiply
    10,916,682.30x = 16,375,023.45 × 10,208,094.30
  4. Step 4: Simplify right side
    10,916,682.30x = 167,157,783,542,311.34
  5. Step 5: Solve for x
    x = 167,157,783,542,311.34/10,916,682.30
  6. Step 6: Final answer
    x = 15,312,141.45

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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.