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Finding the Fourth Proportional to 329,866,793.60, 494,800,190.40 and 135,713,681.60

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Solution

The fourth proportional to 329,866,793.60, 494,800,190.40 and 135,713,681.60 is: 203,570,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,866,793.60 : 494,800,190.40 = 135,713,681.60 : x
  2. Step 2: Convert to fraction form
    329,866,793.60/494,800,190.40 = 135,713,681.60/x
  3. Step 3: Cross multiply
    329,866,793.60x = 494,800,190.40 × 135,713,681.60
  4. Step 4: Simplify right side
    329,866,793.60x = 67,151,155,495,564,968
  5. Step 5: Solve for x
    x = 67,151,155,495,564,968/329,866,793.60
  6. Step 6: Final answer
    x = 203,570,522.40

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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.