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Finding the Fourth Proportional to 47,842,637.60, 71,763,956.40 and 47,842,637.60

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Solution

The fourth proportional to 47,842,637.60, 71,763,956.40 and 47,842,637.60 is: 71,763,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,842,637.60 : 71,763,956.40 = 47,842,637.60 : x
  2. Step 2: Convert to fraction form
    47,842,637.60/71,763,956.40 = 47,842,637.60/x
  3. Step 3: Cross multiply
    47,842,637.60x = 71,763,956.40 × 47,842,637.60
  4. Step 4: Simplify right side
    47,842,637.60x = 3,433,376,958,787,401
  5. Step 5: Solve for x
    x = 3,433,376,958,787,401/47,842,637.60
  6. Step 6: Final answer
    x = 71,763,956.40

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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.