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Finding the Fourth Proportional to 171,559.60, 257,622.36 and 115,758.16

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Solution

The fourth proportional to 171,559.60, 257,622.36 and 115,758.16 is: 173,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,559.60 : 257,622.36 = 115,758.16 : x
  2. Step 2: Convert to fraction form
    171,559.60/257,622.36 = 115,758.16/x
  3. Step 3: Cross multiply
    171,559.60x = 257,622.36 × 115,758.16
  4. Step 4: Simplify right side
    171,559.60x = 29,821,890,368.46
  5. Step 5: Solve for x
    x = 29,821,890,368.46/171,559.60
  6. Step 6: Final answer
    x = 173,828.16

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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.