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Finding the Fourth Proportional to 139,968,267.80, 195,502,078.60 and 139,968,267.80

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Solution

The fourth proportional to 139,968,267.80, 195,502,078.60 and 139,968,267.80 is: 195,502,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,267.80 : 195,502,078.60 = 139,968,267.80 : x
  2. Step 2: Convert to fraction form
    139,968,267.80/195,502,078.60 = 139,968,267.80/x
  3. Step 3: Cross multiply
    139,968,267.80x = 195,502,078.60 × 139,968,267.80
  4. Step 4: Simplify right side
    139,968,267.80x = 27,364,087,292,941,452
  5. Step 5: Solve for x
    x = 27,364,087,292,941,452/139,968,267.80
  6. Step 6: Final answer
    x = 195,502,078.60

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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.