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Finding the Fourth Proportional to 124,763,887.20, 186,809,907.60 and 124,763,887.20

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Solution

The fourth proportional to 124,763,887.20, 186,809,907.60 and 124,763,887.20 is: 186,809,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,763,887.20 : 186,809,907.60 = 124,763,887.20 : x
  2. Step 2: Convert to fraction form
    124,763,887.20/186,809,907.60 = 124,763,887.20/x
  3. Step 3: Cross multiply
    124,763,887.20x = 186,809,907.60 × 124,763,887.20
  4. Step 4: Simplify right side
    124,763,887.20x = 23,307,130,239,648,824
  5. Step 5: Solve for x
    x = 23,307,130,239,648,824/124,763,887.20
  6. Step 6: Final answer
    x = 186,809,907.60

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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.