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Finding the Fourth Proportional to 113,075.63, 169,691.21 and 39,203.63

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Solution

The fourth proportional to 113,075.63, 169,691.21 and 39,203.63 is: 58,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,075.63 : 169,691.21 = 39,203.63 : x
  2. Step 2: Convert to fraction form
    113,075.63/169,691.21 = 39,203.63/x
  3. Step 3: Cross multiply
    113,075.63x = 169,691.21 × 39,203.63
  4. Step 4: Simplify right side
    113,075.63x = 6,652,510,366.62
  5. Step 5: Solve for x
    x = 6,652,510,366.62/113,075.63
  6. Step 6: Final answer
    x = 58,832.40

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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.