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Finding the Fourth Proportional to 207,630,537.60, 311,445,806.40 and 207,630,537.60

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Solution

The fourth proportional to 207,630,537.60, 311,445,806.40 and 207,630,537.60 is: 311,445,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,630,537.60 : 311,445,806.40 = 207,630,537.60 : x
  2. Step 2: Convert to fraction form
    207,630,537.60/311,445,806.40 = 207,630,537.60/x
  3. Step 3: Cross multiply
    207,630,537.60x = 311,445,806.40 × 207,630,537.60
  4. Step 4: Simplify right side
    207,630,537.60x = 64,665,660,216,097,512
  5. Step 5: Solve for x
    x = 64,665,660,216,097,512/207,630,537.60
  6. Step 6: Final answer
    x = 311,445,806.40

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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.