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Finding the Fourth Proportional to 105,183.55, 157,776.54 and 60,783.40

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Solution

The fourth proportional to 105,183.55, 157,776.54 and 60,783.40 is: 91,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,183.55 : 157,776.54 = 60,783.40 : x
  2. Step 2: Convert to fraction form
    105,183.55/157,776.54 = 60,783.40/x
  3. Step 3: Cross multiply
    105,183.55x = 157,776.54 × 60,783.40
  4. Step 4: Simplify right side
    105,183.55x = 9,590,194,541.44
  5. Step 5: Solve for x
    x = 9,590,194,541.44/105,183.55
  6. Step 6: Final answer
    x = 91,175.80

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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.