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Finding the Fourth Proportional to 107,838,415.20, 161,757,622.80 and 53,978,728.80

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Solution

The fourth proportional to 107,838,415.20, 161,757,622.80 and 53,978,728.80 is: 80,968,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838,415.20 : 161,757,622.80 = 53,978,728.80 : x
  2. Step 2: Convert to fraction form
    107,838,415.20/161,757,622.80 = 53,978,728.80/x
  3. Step 3: Cross multiply
    107,838,415.20x = 161,757,622.80 × 53,978,728.80
  4. Step 4: Simplify right side
    107,838,415.20x = 8,731,470,852,453,897
  5. Step 5: Solve for x
    x = 8,731,470,852,453,897/107,838,415.20
  6. Step 6: Final answer
    x = 80,968,093.20

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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.