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Finding the Fourth Proportional to 302,889.33, 417,988.94 and 173,817.54

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Solution

The fourth proportional to 302,889.33, 417,988.94 and 173,817.54 is: 239,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,889.33 : 417,988.94 = 173,817.54 : x
  2. Step 2: Convert to fraction form
    302,889.33/417,988.94 = 173,817.54/x
  3. Step 3: Cross multiply
    302,889.33x = 417,988.94 × 173,817.54
  4. Step 4: Simplify right side
    302,889.33x = 72,653,808,428.92
  5. Step 5: Solve for x
    x = 72,653,808,428.92/302,889.33
  6. Step 6: Final answer
    x = 239,869.16

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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.