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Finding the Fourth Proportional to 10,902,648.80, 16,353,973.20 and 10,194,060.80

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Solution

The fourth proportional to 10,902,648.80, 16,353,973.20 and 10,194,060.80 is: 15,291,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902,648.80 : 16,353,973.20 = 10,194,060.80 : x
  2. Step 2: Convert to fraction form
    10,902,648.80/16,353,973.20 = 10,194,060.80/x
  3. Step 3: Cross multiply
    10,902,648.80x = 16,353,973.20 × 10,194,060.80
  4. Step 4: Simplify right side
    10,902,648.80x = 166,713,397,122,370.56
  5. Step 5: Solve for x
    x = 166,713,397,122,370.56/10,902,648.80
  6. Step 6: Final answer
    x = 15,291,091.20

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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.