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Finding the Fourth Proportional to 171,573.60, 257,533.20 and 82,898.40

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Solution

The fourth proportional to 171,573.60, 257,533.20 and 82,898.40 is: 124,431.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,573.60 : 257,533.20 = 82,898.40 : x
  2. Step 2: Convert to fraction form
    171,573.60/257,533.20 = 82,898.40/x
  3. Step 3: Cross multiply
    171,573.60x = 257,533.20 × 82,898.40
  4. Step 4: Simplify right side
    171,573.60x = 21,349,090,226.88
  5. Step 5: Solve for x
    x = 21,349,090,226.88/171,573.60
  6. Step 6: Final answer
    x = 124,431.09

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1.5x scale

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.