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Finding the Fourth Proportional to 331,152, 456,991.92 and 180,250.08

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Solution

The fourth proportional to 331,152, 456,991.92 and 180,250.08 is: 248,746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,152 : 456,991.92 = 180,250.08 : x
  2. Step 2: Convert to fraction form
    331,152/456,991.92 = 180,250.08/x
  3. Step 3: Cross multiply
    331,152x = 456,991.92 × 180,250.08
  4. Step 4: Simplify right side
    331,152x = 82,372,830,139.35
  5. Step 5: Solve for x
    x = 82,372,830,139.35/331,152
  6. Step 6: Final answer
    x = 248,746.29

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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.