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Finding the Fourth Proportional to 161,238.60, 241,795.67 and 53,142.01

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Solution

The fourth proportional to 161,238.60, 241,795.67 and 53,142.01 is: 79,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,238.60 : 241,795.67 = 53,142.01 : x
  2. Step 2: Convert to fraction form
    161,238.60/241,795.67 = 53,142.01/x
  3. Step 3: Cross multiply
    161,238.60x = 241,795.67 × 53,142.01
  4. Step 4: Simplify right side
    161,238.60x = 12,849,507,042.90
  5. Step 5: Solve for x
    x = 12,849,507,042.90/161,238.60
  6. Step 6: Final answer
    x = 79,692.50

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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.