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Finding the Fourth Proportional to 109,907.80, 164,667.30 and 94,355.80

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Solution

The fourth proportional to 109,907.80, 164,667.30 and 94,355.80 is: 141,366.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,907.80 : 164,667.30 = 94,355.80 : x
  2. Step 2: Convert to fraction form
    109,907.80/164,667.30 = 94,355.80/x
  3. Step 3: Cross multiply
    109,907.80x = 164,667.30 × 94,355.80
  4. Step 4: Simplify right side
    109,907.80x = 15,537,314,825.34
  5. Step 5: Solve for x
    x = 15,537,314,825.34/109,907.80
  6. Step 6: Final answer
    x = 141,366.81

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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.