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Finding the Fourth Proportional to 171,701.20, 257,551.80 and 159,259.60

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Solution

The fourth proportional to 171,701.20, 257,551.80 and 159,259.60 is: 238,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,701.20 : 257,551.80 = 159,259.60 : x
  2. Step 2: Convert to fraction form
    171,701.20/257,551.80 = 159,259.60/x
  3. Step 3: Cross multiply
    171,701.20x = 257,551.80 × 159,259.60
  4. Step 4: Simplify right side
    171,701.20x = 41,017,596,647.28
  5. Step 5: Solve for x
    x = 41,017,596,647.28/171,701.20
  6. Step 6: Final answer
    x = 238,889.40

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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.