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Finding the Fourth Proportional to 131,636.70, 197,325.45 and 65,087.10

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Solution

The fourth proportional to 131,636.70, 197,325.45 and 65,087.10 is: 97,566.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,636.70 : 197,325.45 = 65,087.10 : x
  2. Step 2: Convert to fraction form
    131,636.70/197,325.45 = 65,087.10/x
  3. Step 3: Cross multiply
    131,636.70x = 197,325.45 × 65,087.10
  4. Step 4: Simplify right side
    131,636.70x = 12,843,341,296.70
  5. Step 5: Solve for x
    x = 12,843,341,296.70/131,636.70
  6. Step 6: Final answer
    x = 97,566.57

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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.