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Finding the Fourth Proportional to 171,984.40, 257,458.20 and 151,248.40

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Solution

The fourth proportional to 171,984.40, 257,458.20 and 151,248.40 is: 226,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,984.40 : 257,458.20 = 151,248.40 : x
  2. Step 2: Convert to fraction form
    171,984.40/257,458.20 = 151,248.40/x
  3. Step 3: Cross multiply
    171,984.40x = 257,458.20 × 151,248.40
  4. Step 4: Simplify right side
    171,984.40x = 38,940,140,816.88
  5. Step 5: Solve for x
    x = 38,940,140,816.88/171,984.40
  6. Step 6: Final answer
    x = 226,416.70

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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.