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Finding the Fourth Proportional to 162,551.72, 243,764.66 and 55,915.50

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Solution

The fourth proportional to 162,551.72, 243,764.66 and 55,915.50 is: 83,851.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,551.72 : 243,764.66 = 55,915.50 : x
  2. Step 2: Convert to fraction form
    162,551.72/243,764.66 = 55,915.50/x
  3. Step 3: Cross multiply
    162,551.72x = 243,764.66 × 55,915.50
  4. Step 4: Simplify right side
    162,551.72x = 13,630,222,846.23
  5. Step 5: Solve for x
    x = 13,630,222,846.23/162,551.72
  6. Step 6: Final answer
    x = 83,851.61

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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.