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Finding the Fourth Proportional to 47,136,902.40, 70,705,353.60 and 47,136,902.40

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Solution

The fourth proportional to 47,136,902.40, 70,705,353.60 and 47,136,902.40 is: 70,705,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,136,902.40 : 70,705,353.60 = 47,136,902.40 : x
  2. Step 2: Convert to fraction form
    47,136,902.40/70,705,353.60 = 47,136,902.40/x
  3. Step 3: Cross multiply
    47,136,902.40x = 70,705,353.60 × 47,136,902.40
  4. Step 4: Simplify right side
    47,136,902.40x = 3,332,831,351,800,688.50
  5. Step 5: Solve for x
    x = 3,332,831,351,800,688.50/47,136,902.40
  6. Step 6: Final answer
    x = 70,705,353.60

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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.