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Finding the Fourth Proportional to 131,887.64, 182,012.64 and 74,525.50

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Solution

The fourth proportional to 131,887.64, 182,012.64 and 74,525.50 is: 102,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,887.64 : 182,012.64 = 74,525.50 : x
  2. Step 2: Convert to fraction form
    131,887.64/182,012.64 = 74,525.50/x
  3. Step 3: Cross multiply
    131,887.64x = 182,012.64 × 74,525.50
  4. Step 4: Simplify right side
    131,887.64x = 13,564,582,950.37
  5. Step 5: Solve for x
    x = 13,564,582,950.37/131,887.64
  6. Step 6: Final answer
    x = 102,849.54

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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.