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Finding the Fourth Proportional to 38,973,717.20, 54,652,783.60 and 38,973,717.20

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Solution

The fourth proportional to 38,973,717.20, 54,652,783.60 and 38,973,717.20 is: 54,652,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973,717.20 : 54,652,783.60 = 38,973,717.20 : x
  2. Step 2: Convert to fraction form
    38,973,717.20/54,652,783.60 = 38,973,717.20/x
  3. Step 3: Cross multiply
    38,973,717.20x = 54,652,783.60 × 38,973,717.20
  4. Step 4: Simplify right side
    38,973,717.20x = 2,130,022,132,219,198.25
  5. Step 5: Solve for x
    x = 2,130,022,132,219,198.25/38,973,717.20
  6. Step 6: Final answer
    x = 54,652,783.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.