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Finding the Fourth Proportional to 196,280.40, 294,420.60 and 156,914.40

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Solution

The fourth proportional to 196,280.40, 294,420.60 and 156,914.40 is: 235,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,280.40 : 294,420.60 = 156,914.40 : x
  2. Step 2: Convert to fraction form
    196,280.40/294,420.60 = 156,914.40/x
  3. Step 3: Cross multiply
    196,280.40x = 294,420.60 × 156,914.40
  4. Step 4: Simplify right side
    196,280.40x = 46,198,831,796.64
  5. Step 5: Solve for x
    x = 46,198,831,796.64/196,280.40
  6. Step 6: Final answer
    x = 235,371.60

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1.5x scale

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.