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Finding the Fourth Proportional to 65,343.52, 90,226.90 and 53,245.61

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Solution

The fourth proportional to 65,343.52, 90,226.90 and 53,245.61 is: 73,522.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.52 : 90,226.90 = 53,245.61 : x
  2. Step 2: Convert to fraction form
    65,343.52/90,226.90 = 53,245.61/x
  3. Step 3: Cross multiply
    65,343.52x = 90,226.90 × 53,245.61
  4. Step 4: Simplify right side
    65,343.52x = 4,804,186,328.91
  5. Step 5: Solve for x
    x = 4,804,186,328.91/65,343.52
  6. Step 6: Final answer
    x = 73,522.00

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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.