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Finding the Fourth Proportional to 171,651.60, 257,477.40 and 53,359.20

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Solution

The fourth proportional to 171,651.60, 257,477.40 and 53,359.20 is: 80,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,651.60 : 257,477.40 = 53,359.20 : x
  2. Step 2: Convert to fraction form
    171,651.60/257,477.40 = 53,359.20/x
  3. Step 3: Cross multiply
    171,651.60x = 257,477.40 × 53,359.20
  4. Step 4: Simplify right side
    171,651.60x = 13,738,788,082.08
  5. Step 5: Solve for x
    x = 13,738,788,082.08/171,651.60
  6. Step 6: Final answer
    x = 80,038.80

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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.