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Finding the Fourth Proportional to 196,818.60, 295,256.70 and 103,331.40

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Solution

The fourth proportional to 196,818.60, 295,256.70 and 103,331.40 is: 155,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,818.60 : 295,256.70 = 103,331.40 : x
  2. Step 2: Convert to fraction form
    196,818.60/295,256.70 = 103,331.40/x
  3. Step 3: Cross multiply
    196,818.60x = 295,256.70 × 103,331.40
  4. Step 4: Simplify right side
    196,818.60x = 30,509,288,170.38
  5. Step 5: Solve for x
    x = 30,509,288,170.38/196,818.60
  6. Step 6: Final answer
    x = 155,012.22

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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.