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Finding the Fourth Proportional to 290,908.55, 401,568.14 and 183,457.19

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Solution

The fourth proportional to 290,908.55, 401,568.14 and 183,457.19 is: 253,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,908.55 : 401,568.14 = 183,457.19 : x
  2. Step 2: Convert to fraction form
    290,908.55/401,568.14 = 183,457.19/x
  3. Step 3: Cross multiply
    290,908.55x = 401,568.14 × 183,457.19
  4. Step 4: Simplify right side
    290,908.55x = 73,670,561,008.73
  5. Step 5: Solve for x
    x = 73,670,561,008.73/290,908.55
  6. Step 6: Final answer
    x = 253,243.03

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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.