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Finding the Fourth Proportional to 82,803.50, 114,269.10 and 45,078.02

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Solution

The fourth proportional to 82,803.50, 114,269.10 and 45,078.02 is: 62,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,803.50 : 114,269.10 = 45,078.02 : x
  2. Step 2: Convert to fraction form
    82,803.50/114,269.10 = 45,078.02/x
  3. Step 3: Cross multiply
    82,803.50x = 114,269.10 × 45,078.02
  4. Step 4: Simplify right side
    82,803.50x = 5,151,024,775.18
  5. Step 5: Solve for x
    x = 5,151,024,775.18/82,803.50
  6. Step 6: Final answer
    x = 62,207.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.