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Finding the Fourth Proportional to 64,448,009.20, 96,672,013.80 and 37,200,905.20

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Solution

The fourth proportional to 64,448,009.20, 96,672,013.80 and 37,200,905.20 is: 55,801,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,448,009.20 : 96,672,013.80 = 37,200,905.20 : x
  2. Step 2: Convert to fraction form
    64,448,009.20/96,672,013.80 = 37,200,905.20/x
  3. Step 3: Cross multiply
    64,448,009.20x = 96,672,013.80 × 37,200,905.20
  4. Step 4: Simplify right side
    64,448,009.20x = 3,596,286,420,866,892
  5. Step 5: Solve for x
    x = 3,596,286,420,866,892/64,448,009.20
  6. Step 6: Final answer
    x = 55,801,357.80

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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.