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Finding the Fourth Proportional to 291,943.85, 402,881.85 and 164,618.53

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Solution

The fourth proportional to 291,943.85, 402,881.85 and 164,618.53 is: 227,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,943.85 : 402,881.85 = 164,618.53 : x
  2. Step 2: Convert to fraction form
    291,943.85/402,881.85 = 164,618.53/x
  3. Step 3: Cross multiply
    291,943.85x = 402,881.85 × 164,618.53
  4. Step 4: Simplify right side
    291,943.85x = 66,321,816,903.48
  5. Step 5: Solve for x
    x = 66,321,816,903.48/291,943.85
  6. Step 6: Final answer
    x = 227,173.20

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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.