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Finding the Fourth Proportional to 196,137.60, 294,244.80 and 83,817.60

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Solution

The fourth proportional to 196,137.60, 294,244.80 and 83,817.60 is: 125,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,137.60 : 294,244.80 = 83,817.60 : x
  2. Step 2: Convert to fraction form
    196,137.60/294,244.80 = 83,817.60/x
  3. Step 3: Cross multiply
    196,137.60x = 294,244.80 × 83,817.60
  4. Step 4: Simplify right side
    196,137.60x = 24,662,892,948.48
  5. Step 5: Solve for x
    x = 24,662,892,948.48/196,137.60
  6. Step 6: Final answer
    x = 125,742.81

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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.