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Finding the Fourth Proportional to 178,776.72, 268,165.08 and 45,657.27

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Solution

The fourth proportional to 178,776.72, 268,165.08 and 45,657.27 is: 68,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,776.72 : 268,165.08 = 45,657.27 : x
  2. Step 2: Convert to fraction form
    178,776.72/268,165.08 = 45,657.27/x
  3. Step 3: Cross multiply
    178,776.72x = 268,165.08 × 45,657.27
  4. Step 4: Simplify right side
    178,776.72x = 12,243,685,462.13
  5. Step 5: Solve for x
    x = 12,243,685,462.13/178,776.72
  6. Step 6: Final answer
    x = 68,485.91

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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.