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Finding the Fourth Proportional to 128,997,626.60, 181,106,860.60 and 128,997,626.60

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Solution

The fourth proportional to 128,997,626.60, 181,106,860.60 and 128,997,626.60 is: 181,106,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,997,626.60 : 181,106,860.60 = 128,997,626.60 : x
  2. Step 2: Convert to fraction form
    128,997,626.60/181,106,860.60 = 128,997,626.60/x
  3. Step 3: Cross multiply
    128,997,626.60x = 181,106,860.60 × 128,997,626.60
  4. Step 4: Simplify right side
    128,997,626.60x = 23,362,355,178,377,052
  5. Step 5: Solve for x
    x = 23,362,355,178,377,052/128,997,626.60
  6. Step 6: Final answer
    x = 181,106,860.60

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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.