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Finding the Fourth Proportional to 124,584,135.60, 186,876,203.40 and 73,523,809.20

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Solution

The fourth proportional to 124,584,135.60, 186,876,203.40 and 73,523,809.20 is: 110,285,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,584,135.60 : 186,876,203.40 = 73,523,809.20 : x
  2. Step 2: Convert to fraction form
    124,584,135.60/186,876,203.40 = 73,523,809.20/x
  3. Step 3: Cross multiply
    124,584,135.60x = 186,876,203.40 × 73,523,809.20
  4. Step 4: Simplify right side
    124,584,135.60x = 13,739,850,322,801,992
  5. Step 5: Solve for x
    x = 13,739,850,322,801,992/124,584,135.60
  6. Step 6: Final answer
    x = 110,285,713.80

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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.