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Finding the Fourth Proportional to 163,625.64, 245,438.16 and 45,296.64

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Solution

The fourth proportional to 163,625.64, 245,438.16 and 45,296.64 is: 67,944.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,625.64 : 245,438.16 = 45,296.64 : x
  2. Step 2: Convert to fraction form
    163,625.64/245,438.16 = 45,296.64/x
  3. Step 3: Cross multiply
    163,625.64x = 245,438.16 × 45,296.64
  4. Step 4: Simplify right side
    163,625.64x = 11,117,523,975.78
  5. Step 5: Solve for x
    x = 11,117,523,975.78/163,625.64
  6. Step 6: Final answer
    x = 67,944.88

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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.