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Finding the Fourth Proportional to 307,008.06, 423,664.74 and 171,041.82

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Solution

The fourth proportional to 307,008.06, 423,664.74 and 171,041.82 is: 236,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,008.06 : 423,664.74 = 171,041.82 : x
  2. Step 2: Convert to fraction form
    307,008.06/423,664.74 = 171,041.82/x
  3. Step 3: Cross multiply
    307,008.06x = 423,664.74 × 171,041.82
  4. Step 4: Simplify right side
    307,008.06x = 72,464,388,199.43
  5. Step 5: Solve for x
    x = 72,464,388,199.43/307,008.06
  6. Step 6: Final answer
    x = 236,034.16

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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.