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Finding the Fourth Proportional to 139,775,198.60, 209,660,829.60 and 63,098,103.80

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Solution

The fourth proportional to 139,775,198.60, 209,660,829.60 and 63,098,103.80 is: 94,646,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,775,198.60 : 209,660,829.60 = 63,098,103.80 : x
  2. Step 2: Convert to fraction form
    139,775,198.60/209,660,829.60 = 63,098,103.80/x
  3. Step 3: Cross multiply
    139,775,198.60x = 209,660,829.60 × 63,098,103.80
  4. Step 4: Simplify right side
    139,775,198.60x = 13,229,200,788,894,912
  5. Step 5: Solve for x
    x = 13,229,200,788,894,912/139,775,198.60
  6. Step 6: Final answer
    x = 94,646,267.16

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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.