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Finding the Fourth Proportional to 95,735.70, 143,603.55 and 66,211.20

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Solution

The fourth proportional to 95,735.70, 143,603.55 and 66,211.20 is: 99,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,735.70 : 143,603.55 = 66,211.20 : x
  2. Step 2: Convert to fraction form
    95,735.70/143,603.55 = 66,211.20/x
  3. Step 3: Cross multiply
    95,735.70x = 143,603.55 × 66,211.20
  4. Step 4: Simplify right side
    95,735.70x = 9,508,163,369.76
  5. Step 5: Solve for x
    x = 9,508,163,369.76/95,735.70
  6. Step 6: Final answer
    x = 99,316.80

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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.