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Finding the Fourth Proportional to 95,903.70, 143,855.55 and 54,431.70

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Solution

The fourth proportional to 95,903.70, 143,855.55 and 54,431.70 is: 81,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,903.70 : 143,855.55 = 54,431.70 : x
  2. Step 2: Convert to fraction form
    95,903.70/143,855.55 = 54,431.70/x
  3. Step 3: Cross multiply
    95,903.70x = 143,855.55 × 54,431.70
  4. Step 4: Simplify right side
    95,903.70x = 7,830,302,140.94
  5. Step 5: Solve for x
    x = 7,830,302,140.94/95,903.70
  6. Step 6: Final answer
    x = 81,647.55

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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.