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Finding the Fourth Proportional to 64,133.20, 96,248.40 and 41,939.20

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Solution

The fourth proportional to 64,133.20, 96,248.40 and 41,939.20 is: 62,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,133.20 : 96,248.40 = 41,939.20 : x
  2. Step 2: Convert to fraction form
    64,133.20/96,248.40 = 41,939.20/x
  3. Step 3: Cross multiply
    64,133.20x = 96,248.40 × 41,939.20
  4. Step 4: Simplify right side
    64,133.20x = 4,036,580,897.28
  5. Step 5: Solve for x
    x = 4,036,580,897.28/64,133.20
  6. Step 6: Final answer
    x = 62,940.58

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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.