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Finding the Fourth Proportional to 171,487.34, 257,268.60 and 57,631.07

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Solution

The fourth proportional to 171,487.34, 257,268.60 and 57,631.07 is: 86,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,487.34 : 257,268.60 = 57,631.07 : x
  2. Step 2: Convert to fraction form
    171,487.34/257,268.60 = 57,631.07/x
  3. Step 3: Cross multiply
    171,487.34x = 257,268.60 × 57,631.07
  4. Step 4: Simplify right side
    171,487.34x = 14,826,663,409.06
  5. Step 5: Solve for x
    x = 14,826,663,409.06/171,487.34
  6. Step 6: Final answer
    x = 86,459.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.