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Finding the Fourth Proportional to 292,008.78, 402,977.97 and 164,659.50

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Solution

The fourth proportional to 292,008.78, 402,977.97 and 164,659.50 is: 227,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,008.78 : 402,977.97 = 164,659.50 : x
  2. Step 2: Convert to fraction form
    292,008.78/402,977.97 = 164,659.50/x
  3. Step 3: Cross multiply
    292,008.78x = 402,977.97 × 164,659.50
  4. Step 4: Simplify right side
    292,008.78x = 66,354,151,051.22
  5. Step 5: Solve for x
    x = 66,354,151,051.22/292,008.78
  6. Step 6: Final answer
    x = 227,233.41

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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.