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Finding the Fourth Proportional to 66,075.26, 99,284.81 and 61,755.93

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Solution

The fourth proportional to 66,075.26, 99,284.81 and 61,755.93 is: 92,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.26 : 99,284.81 = 61,755.93 : x
  2. Step 2: Convert to fraction form
    66,075.26/99,284.81 = 61,755.93/x
  3. Step 3: Cross multiply
    66,075.26x = 99,284.81 × 61,755.93
  4. Step 4: Simplify right side
    66,075.26x = 6,131,425,467.64
  5. Step 5: Solve for x
    x = 6,131,425,467.64/66,075.26
  6. Step 6: Final answer
    x = 92,794.58

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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.