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Finding the Fourth Proportional to 73,351,518.70, 109,788,129.60 and 73,351,518.70

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Solution

The fourth proportional to 73,351,518.70, 109,788,129.60 and 73,351,518.70 is: 109,788,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,351,518.70 : 109,788,129.60 = 73,351,518.70 : x
  2. Step 2: Convert to fraction form
    73,351,518.70/109,788,129.60 = 73,351,518.70/x
  3. Step 3: Cross multiply
    73,351,518.70x = 109,788,129.60 × 73,351,518.70
  4. Step 4: Simplify right side
    73,351,518.70x = 8,053,126,041,392,423
  5. Step 5: Solve for x
    x = 8,053,126,041,392,423/73,351,518.70
  6. Step 6: Final answer
    x = 109,788,129.60

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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.