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Finding the Fourth Proportional to 188,483,138.70, 282,724,708.05 and 52,168,522.20

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Solution

The fourth proportional to 188,483,138.70, 282,724,708.05 and 52,168,522.20 is: 78,252,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,483,138.70 : 282,724,708.05 = 52,168,522.20 : x
  2. Step 2: Convert to fraction form
    188,483,138.70/282,724,708.05 = 52,168,522.20/x
  3. Step 3: Cross multiply
    188,483,138.70x = 282,724,708.05 × 52,168,522.20
  4. Step 4: Simplify right side
    188,483,138.70x = 14,749,330,208,394,946
  5. Step 5: Solve for x
    x = 14,749,330,208,394,946/188,483,138.70
  6. Step 6: Final answer
    x = 78,252,783.30

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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.