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Finding the Fourth Proportional to 171,687.10, 257,526.60 and 47,028.10

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Solution

The fourth proportional to 171,687.10, 257,526.60 and 47,028.10 is: 70,541.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,687.10 : 257,526.60 = 47,028.10 : x
  2. Step 2: Convert to fraction form
    171,687.10/257,526.60 = 47,028.10/x
  3. Step 3: Cross multiply
    171,687.10x = 257,526.60 × 47,028.10
  4. Step 4: Simplify right side
    171,687.10x = 12,110,986,697.46
  5. Step 5: Solve for x
    x = 12,110,986,697.46/171,687.10
  6. Step 6: Final answer
    x = 70,541.04

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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.