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Finding the Fourth Proportional to 108,809,361.20, 152,534,659.60 and 108,809,361.20

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Solution

The fourth proportional to 108,809,361.20, 152,534,659.60 and 108,809,361.20 is: 152,534,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809,361.20 : 152,534,659.60 = 108,809,361.20 : x
  2. Step 2: Convert to fraction form
    108,809,361.20/152,534,659.60 = 108,809,361.20/x
  3. Step 3: Cross multiply
    108,809,361.20x = 152,534,659.60 × 108,809,361.20
  4. Step 4: Simplify right side
    108,809,361.20x = 16,597,198,871,935,448
  5. Step 5: Solve for x
    x = 16,597,198,871,935,448/108,809,361.20
  6. Step 6: Final answer
    x = 152,534,659.60

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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.