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Finding the Fourth Proportional to 125,655,379.80, 188,483,069.70 and 34,778,968.80

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Solution

The fourth proportional to 125,655,379.80, 188,483,069.70 and 34,778,968.80 is: 52,168,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,655,379.80 : 188,483,069.70 = 34,778,968.80 : x
  2. Step 2: Convert to fraction form
    125,655,379.80/188,483,069.70 = 34,778,968.80/x
  3. Step 3: Cross multiply
    125,655,379.80x = 188,483,069.70 × 34,778,968.80
  4. Step 4: Simplify right side
    125,655,379.80x = 6,555,246,800,424,524
  5. Step 5: Solve for x
    x = 6,555,246,800,424,524/125,655,379.80
  6. Step 6: Final answer
    x = 52,168,453.20

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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.