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Finding the Fourth Proportional to 171,914.60, 257,871.90 and 124,675.40

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Solution

The fourth proportional to 171,914.60, 257,871.90 and 124,675.40 is: 187,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,914.60 : 257,871.90 = 124,675.40 : x
  2. Step 2: Convert to fraction form
    171,914.60/257,871.90 = 124,675.40/x
  3. Step 3: Cross multiply
    171,914.60x = 257,871.90 × 124,675.40
  4. Step 4: Simplify right side
    171,914.60x = 32,150,282,281.26
  5. Step 5: Solve for x
    x = 32,150,282,281.26/171,914.60
  6. Step 6: Final answer
    x = 187,013.10

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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.