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Finding the Fourth Proportional to 93,312,469.20, 139,968,703.80 and 45,536,725.20

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Solution

The fourth proportional to 93,312,469.20, 139,968,703.80 and 45,536,725.20 is: 68,305,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,469.20 : 139,968,703.80 = 45,536,725.20 : x
  2. Step 2: Convert to fraction form
    93,312,469.20/139,968,703.80 = 45,536,725.20/x
  3. Step 3: Cross multiply
    93,312,469.20x = 139,968,703.80 × 45,536,725.20
  4. Step 4: Simplify right side
    93,312,469.20x = 6,373,716,401,540,797
  5. Step 5: Solve for x
    x = 6,373,716,401,540,797/93,312,469.20
  6. Step 6: Final answer
    x = 68,305,087.80

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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.