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Finding the Fourth Proportional to 99,080,645.60, 148,620,968.40 and 99,080,645.60

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Solution

The fourth proportional to 99,080,645.60, 148,620,968.40 and 99,080,645.60 is: 148,620,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,080,645.60 : 148,620,968.40 = 99,080,645.60 : x
  2. Step 2: Convert to fraction form
    99,080,645.60/148,620,968.40 = 99,080,645.60/x
  3. Step 3: Cross multiply
    99,080,645.60x = 148,620,968.40 × 99,080,645.60
  4. Step 4: Simplify right side
    99,080,645.60x = 14,725,461,498,769,198
  5. Step 5: Solve for x
    x = 14,725,461,498,769,198/99,080,645.60
  6. Step 6: Final answer
    x = 148,620,968.40

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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.