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Finding the Fourth Proportional to 171,723.60, 258,276.60 and 153,752.40

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Solution

The fourth proportional to 171,723.60, 258,276.60 and 153,752.40 is: 231,247.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,723.60 : 258,276.60 = 153,752.40 : x
  2. Step 2: Convert to fraction form
    171,723.60/258,276.60 = 153,752.40/x
  3. Step 3: Cross multiply
    171,723.60x = 258,276.60 × 153,752.40
  4. Step 4: Simplify right side
    171,723.60x = 39,710,647,113.84
  5. Step 5: Solve for x
    x = 39,710,647,113.84/171,723.60
  6. Step 6: Final answer
    x = 231,247.46

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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.