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Finding the Fourth Proportional to 196,668,841.60, 295,181,721.60 and 99,692,012.80

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Solution

The fourth proportional to 196,668,841.60, 295,181,721.60 and 99,692,012.80 is: 149,628,480.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,668,841.60 : 295,181,721.60 = 99,692,012.80 : x
  2. Step 2: Convert to fraction form
    196,668,841.60/295,181,721.60 = 99,692,012.80/x
  3. Step 3: Cross multiply
    196,668,841.60x = 295,181,721.60 × 99,692,012.80
  4. Step 4: Simplify right side
    196,668,841.60x = 29,427,259,968,073,236
  5. Step 5: Solve for x
    x = 29,427,259,968,073,236/196,668,841.60
  6. Step 6: Final answer
    x = 149,628,480.69

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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.