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Finding the Fourth Proportional to 330,978.06, 456,751.71 and 180,076.14

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Solution

The fourth proportional to 330,978.06, 456,751.71 and 180,076.14 is: 248,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,978.06 : 456,751.71 = 180,076.14 : x
  2. Step 2: Convert to fraction form
    330,978.06/456,751.71 = 180,076.14/x
  3. Step 3: Cross multiply
    330,978.06x = 456,751.71 × 180,076.14
  4. Step 4: Simplify right side
    330,978.06x = 82,250,084,875.20
  5. Step 5: Solve for x
    x = 82,250,084,875.20/330,978.06
  6. Step 6: Final answer
    x = 248,506.15

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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.