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Finding the Fourth Proportional to 76,075.68, 104,977.68 and 43,801.68

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Solution

The fourth proportional to 76,075.68, 104,977.68 and 43,801.68 is: 60,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,075.68 : 104,977.68 = 43,801.68 : x
  2. Step 2: Convert to fraction form
    76,075.68/104,977.68 = 43,801.68/x
  3. Step 3: Cross multiply
    76,075.68x = 104,977.68 × 43,801.68
  4. Step 4: Simplify right side
    76,075.68x = 4,598,198,746.50
  5. Step 5: Solve for x
    x = 4,598,198,746.50/76,075.68
  6. Step 6: Final answer
    x = 60,442.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.