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Finding the Fourth Proportional to 394,751,010.80, 592,182,503.40 and 122,093,346.80

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Solution

The fourth proportional to 394,751,010.80, 592,182,503.40 and 122,093,346.80 is: 183,157,336.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,751,010.80 : 592,182,503.40 = 122,093,346.80 : x
  2. Step 2: Convert to fraction form
    394,751,010.80/592,182,503.40 = 122,093,346.80/x
  3. Step 3: Cross multiply
    394,751,010.80x = 592,182,503.40 × 122,093,346.80
  4. Step 4: Simplify right side
    394,751,010.80x = 72,301,543,756,508,368
  5. Step 5: Solve for x
    x = 72,301,543,756,508,368/394,751,010.80
  6. Step 6: Final answer
    x = 183,157,336.60

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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.