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Finding the Fourth Proportional to 314,912.34, 434,562.93 and 171,658.26

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Solution

The fourth proportional to 314,912.34, 434,562.93 and 171,658.26 is: 236,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,912.34 : 434,562.93 = 171,658.26 : x
  2. Step 2: Convert to fraction form
    314,912.34/434,562.93 = 171,658.26/x
  3. Step 3: Cross multiply
    314,912.34x = 434,562.93 × 171,658.26
  4. Step 4: Simplify right side
    314,912.34x = 74,596,316,424.30
  5. Step 5: Solve for x
    x = 74,596,316,424.30/314,912.34
  6. Step 6: Final answer
    x = 236,879.62

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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.