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Finding the Fourth Proportional to 172,462,912.40, 258,694,368.60 and 172,462,912.40

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Solution

The fourth proportional to 172,462,912.40, 258,694,368.60 and 172,462,912.40 is: 258,694,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,462,912.40 : 258,694,368.60 = 172,462,912.40 : x
  2. Step 2: Convert to fraction form
    172,462,912.40/258,694,368.60 = 172,462,912.40/x
  3. Step 3: Cross multiply
    172,462,912.40x = 258,694,368.60 × 172,462,912.40
  4. Step 4: Simplify right side
    172,462,912.40x = 44,615,184,230,235,112
  5. Step 5: Solve for x
    x = 44,615,184,230,235,112/172,462,912.40
  6. Step 6: Final answer
    x = 258,694,368.60

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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.