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Finding the Fourth Proportional to 135,648,136.80, 190,162,483.20 and 135,648,136.80

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Solution

The fourth proportional to 135,648,136.80, 190,162,483.20 and 135,648,136.80 is: 190,162,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,648,136.80 : 190,162,483.20 = 135,648,136.80 : x
  2. Step 2: Convert to fraction form
    135,648,136.80/190,162,483.20 = 135,648,136.80/x
  3. Step 3: Cross multiply
    135,648,136.80x = 190,162,483.20 × 135,648,136.80
  4. Step 4: Simplify right side
    135,648,136.80x = 25,795,186,535,341,304
  5. Step 5: Solve for x
    x = 25,795,186,535,341,304/135,648,136.80
  6. Step 6: Final answer
    x = 190,162,483.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.