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Finding the Fourth Proportional to 239,980.84, 359,971.26 and 92,133.16

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Solution

The fourth proportional to 239,980.84, 359,971.26 and 92,133.16 is: 138,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,980.84 : 359,971.26 = 92,133.16 : x
  2. Step 2: Convert to fraction form
    239,980.84/359,971.26 = 92,133.16/x
  3. Step 3: Cross multiply
    239,980.84x = 359,971.26 × 92,133.16
  4. Step 4: Simplify right side
    239,980.84x = 33,165,289,692.98
  5. Step 5: Solve for x
    x = 33,165,289,692.98/239,980.84
  6. Step 6: Final answer
    x = 138,199.74

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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.