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Finding the Fourth Proportional to 67,394,493.60, 101,091,740.40 and 66,050,800.80

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Solution

The fourth proportional to 67,394,493.60, 101,091,740.40 and 66,050,800.80 is: 99,076,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,394,493.60 : 101,091,740.40 = 66,050,800.80 : x
  2. Step 2: Convert to fraction form
    67,394,493.60/101,091,740.40 = 66,050,800.80/x
  3. Step 3: Cross multiply
    67,394,493.60x = 101,091,740.40 × 66,050,800.80
  4. Step 4: Simplify right side
    67,394,493.60x = 6,677,190,407,685,712
  5. Step 5: Solve for x
    x = 6,677,190,407,685,712/67,394,493.60
  6. Step 6: Final answer
    x = 99,076,201.20

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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.