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Finding the Fourth Proportional to 194,912.40, 292,368.60 and 47,168.40

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Solution

The fourth proportional to 194,912.40, 292,368.60 and 47,168.40 is: 70,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,912.40 : 292,368.60 = 47,168.40 : x
  2. Step 2: Convert to fraction form
    194,912.40/292,368.60 = 47,168.40/x
  3. Step 3: Cross multiply
    194,912.40x = 292,368.60 × 47,168.40
  4. Step 4: Simplify right side
    194,912.40x = 13,790,559,072.24
  5. Step 5: Solve for x
    x = 13,790,559,072.24/194,912.40
  6. Step 6: Final answer
    x = 70,752.60

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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.