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Finding the Fourth Proportional to 274,637.44, 411,692.64 and 87,526.72

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Solution

The fourth proportional to 274,637.44, 411,692.64 and 87,526.72 is: 131,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,637.44 : 411,692.64 = 87,526.72 : x
  2. Step 2: Convert to fraction form
    274,637.44/411,692.64 = 87,526.72/x
  3. Step 3: Cross multiply
    274,637.44x = 411,692.64 × 87,526.72
  4. Step 4: Simplify right side
    274,637.44x = 36,034,106,427.34
  5. Step 5: Solve for x
    x = 36,034,106,427.34/274,637.44
  6. Step 6: Final answer
    x = 131,206.10

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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.