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Finding the Fourth Proportional to 163,956.96, 245,941.92 and 45,638.64

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Solution

The fourth proportional to 163,956.96, 245,941.92 and 45,638.64 is: 68,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,956.96 : 245,941.92 = 45,638.64 : x
  2. Step 2: Convert to fraction form
    163,956.96/245,941.92 = 45,638.64/x
  3. Step 3: Cross multiply
    163,956.96x = 245,941.92 × 45,638.64
  4. Step 4: Simplify right side
    163,956.96x = 11,224,454,747.79
  5. Step 5: Solve for x
    x = 11,224,454,747.79/163,956.96
  6. Step 6: Final answer
    x = 68,459.76

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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.