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Finding the Fourth Proportional to 93,523.20, 129,030 and 53,226.87

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Solution

The fourth proportional to 93,523.20, 129,030 and 53,226.87 is: 73,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,523.20 : 129,030 = 53,226.87 : x
  2. Step 2: Convert to fraction form
    93,523.20/129,030 = 53,226.87/x
  3. Step 3: Cross multiply
    93,523.20x = 129,030 × 53,226.87
  4. Step 4: Simplify right side
    93,523.20x = 6,867,863,036.10
  5. Step 5: Solve for x
    x = 6,867,863,036.10/93,523.20
  6. Step 6: Final answer
    x = 73,434.86

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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.