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Finding the Fourth Proportional to 573,713,999.70, 860,570,999.55 and 185,815,213.80

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Solution

The fourth proportional to 573,713,999.70, 860,570,999.55 and 185,815,213.80 is: 278,722,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,713,999.70 : 860,570,999.55 = 185,815,213.80 : x
  2. Step 2: Convert to fraction form
    573,713,999.70/860,570,999.55 = 185,815,213.80/x
  3. Step 3: Cross multiply
    573,713,999.70x = 860,570,999.55 × 185,815,213.80
  4. Step 4: Simplify right side
    573,713,999.70x = 159,907,184,271,462,944
  5. Step 5: Solve for x
    x = 159,907,184,271,462,944/573,713,999.70
  6. Step 6: Final answer
    x = 278,722,820.70

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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.