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Finding the Fourth Proportional to 113,075.64, 169,417.40 and 68,608.98

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Solution

The fourth proportional to 113,075.64, 169,417.40 and 68,608.98 is: 102,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,075.64 : 169,417.40 = 68,608.98 : x
  2. Step 2: Convert to fraction form
    113,075.64/169,417.40 = 68,608.98/x
  3. Step 3: Cross multiply
    113,075.64x = 169,417.40 × 68,608.98
  4. Step 4: Simplify right side
    113,075.64x = 11,623,554,665.21
  5. Step 5: Solve for x
    x = 11,623,554,665.21/113,075.64
  6. Step 6: Final answer
    x = 102,794.51

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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.