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Finding the Fourth Proportional to 196,910.40, 295,408.80 and 97,118.40

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Solution

The fourth proportional to 196,910.40, 295,408.80 and 97,118.40 is: 145,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,910.40 : 295,408.80 = 97,118.40 : x
  2. Step 2: Convert to fraction form
    196,910.40/295,408.80 = 97,118.40/x
  3. Step 3: Cross multiply
    196,910.40x = 295,408.80 × 97,118.40
  4. Step 4: Simplify right side
    196,910.40x = 28,689,630,001.92
  5. Step 5: Solve for x
    x = 28,689,630,001.92/196,910.40
  6. Step 6: Final answer
    x = 145,698.91

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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.