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Finding the Fourth Proportional to 74,883,909.60, 105,064,221.60 and 74,883,909.60

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Solution

The fourth proportional to 74,883,909.60, 105,064,221.60 and 74,883,909.60 is: 105,064,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,883,909.60 : 105,064,221.60 = 74,883,909.60 : x
  2. Step 2: Convert to fraction form
    74,883,909.60/105,064,221.60 = 74,883,909.60/x
  3. Step 3: Cross multiply
    74,883,909.60x = 105,064,221.60 × 74,883,909.60
  4. Step 4: Simplify right side
    74,883,909.60x = 7,867,619,672,488,766
  5. Step 5: Solve for x
    x = 7,867,619,672,488,766/74,883,909.60
  6. Step 6: Final answer
    x = 105,064,221.60

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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.