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Finding the Fourth Proportional to 178,380,280.80, 267,570,421.20 and 178,380,280.80

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Solution

The fourth proportional to 178,380,280.80, 267,570,421.20 and 178,380,280.80 is: 267,570,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,380,280.80 : 267,570,421.20 = 178,380,280.80 : x
  2. Step 2: Convert to fraction form
    178,380,280.80/267,570,421.20 = 178,380,280.80/x
  3. Step 3: Cross multiply
    178,380,280.80x = 267,570,421.20 × 178,380,280.80
  4. Step 4: Simplify right side
    178,380,280.80x = 47,729,286,867,430,272
  5. Step 5: Solve for x
    x = 47,729,286,867,430,272/178,380,280.80
  6. Step 6: Final answer
    x = 267,570,421.20

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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.