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Finding the Fourth Proportional to 104,376, 156,592.80 and 30,504

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Solution

The fourth proportional to 104,376, 156,592.80 and 30,504 is: 45,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,376 : 156,592.80 = 30,504 : x
  2. Step 2: Convert to fraction form
    104,376/156,592.80 = 30,504/x
  3. Step 3: Cross multiply
    104,376x = 156,592.80 × 30,504
  4. Step 4: Simplify right side
    104,376x = 4,776,706,771.20
  5. Step 5: Solve for x
    x = 4,776,706,771.20/104,376
  6. Step 6: Final answer
    x = 45,764.42

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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.