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Finding the Fourth Proportional to 93,975,503.80, 140,963,255.70 and 68,466,335.80

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Solution

The fourth proportional to 93,975,503.80, 140,963,255.70 and 68,466,335.80 is: 102,699,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,975,503.80 : 140,963,255.70 = 68,466,335.80 : x
  2. Step 2: Convert to fraction form
    93,975,503.80/140,963,255.70 = 68,466,335.80/x
  3. Step 3: Cross multiply
    93,975,503.80x = 140,963,255.70 × 68,466,335.80
  4. Step 4: Simplify right side
    93,975,503.80x = 9,651,237,600,217,462
  5. Step 5: Solve for x
    x = 9,651,237,600,217,462/93,975,503.80
  6. Step 6: Final answer
    x = 102,699,503.70

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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.