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Finding the Fourth Proportional to 38,963,235.60, 54,667,969.20 and 38,963,235.60

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Solution

The fourth proportional to 38,963,235.60, 54,667,969.20 and 38,963,235.60 is: 54,667,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963,235.60 : 54,667,969.20 = 38,963,235.60 : x
  2. Step 2: Convert to fraction form
    38,963,235.60/54,667,969.20 = 38,963,235.60/x
  3. Step 3: Cross multiply
    38,963,235.60x = 54,667,969.20 × 38,963,235.60
  4. Step 4: Simplify right side
    38,963,235.60x = 2,130,040,963,713,143.75
  5. Step 5: Solve for x
    x = 2,130,040,963,713,143.75/38,963,235.60
  6. Step 6: Final answer
    x = 54,667,969.20

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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.