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Finding the Fourth Proportional to 256,851.90, 354,300.64 and 169,637.53

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Solution

The fourth proportional to 256,851.90, 354,300.64 and 169,637.53 is: 233,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,851.90 : 354,300.64 = 169,637.53 : x
  2. Step 2: Convert to fraction form
    256,851.90/354,300.64 = 169,637.53/x
  3. Step 3: Cross multiply
    256,851.90x = 354,300.64 × 169,637.53
  4. Step 4: Simplify right side
    256,851.90x = 60,102,684,137.17
  5. Step 5: Solve for x
    x = 60,102,684,137.17/256,851.90
  6. Step 6: Final answer
    x = 233,997.43

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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.