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Finding the Fourth Proportional to 39,146,469.20, 58,719,703.80 and 39,146,469.20

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Solution

The fourth proportional to 39,146,469.20, 58,719,703.80 and 39,146,469.20 is: 58,719,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,146,469.20 : 58,719,703.80 = 39,146,469.20 : x
  2. Step 2: Convert to fraction form
    39,146,469.20/58,719,703.80 = 39,146,469.20/x
  3. Step 3: Cross multiply
    39,146,469.20x = 58,719,703.80 × 39,146,469.20
  4. Step 4: Simplify right side
    39,146,469.20x = 2,298,669,076,239,823
  5. Step 5: Solve for x
    x = 2,298,669,076,239,823/39,146,469.20
  6. Step 6: Final answer
    x = 58,719,703.80

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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.