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Finding the Fourth Proportional to 99,409.44, 137,029.40 and 67,522.98

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Solution

The fourth proportional to 99,409.44, 137,029.40 and 67,522.98 is: 93,076.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,409.44 : 137,029.40 = 67,522.98 : x
  2. Step 2: Convert to fraction form
    99,409.44/137,029.40 = 67,522.98/x
  3. Step 3: Cross multiply
    99,409.44x = 137,029.40 × 67,522.98
  4. Step 4: Simplify right side
    99,409.44x = 9,252,633,435.61
  5. Step 5: Solve for x
    x = 9,252,633,435.61/99,409.44
  6. Step 6: Final answer
    x = 93,076.00

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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.