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Finding the Fourth Proportional to 185,485.72, 278,621.98 and 174,687.88

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Solution

The fourth proportional to 185,485.72, 278,621.98 and 174,687.88 is: 262,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,485.72 : 278,621.98 = 174,687.88 : x
  2. Step 2: Convert to fraction form
    185,485.72/278,621.98 = 174,687.88/x
  3. Step 3: Cross multiply
    185,485.72x = 278,621.98 × 174,687.88
  4. Step 4: Simplify right side
    185,485.72x = 48,671,883,007.60
  5. Step 5: Solve for x
    x = 48,671,883,007.60/185,485.72
  6. Step 6: Final answer
    x = 262,402.32

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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.