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Finding the Fourth Proportional to 67,026, 92,515.16 and 53,690.16

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Solution

The fourth proportional to 67,026, 92,515.16 and 53,690.16 is: 74,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,026 : 92,515.16 = 53,690.16 : x
  2. Step 2: Convert to fraction form
    67,026/92,515.16 = 53,690.16/x
  3. Step 3: Cross multiply
    67,026x = 92,515.16 × 53,690.16
  4. Step 4: Simplify right side
    67,026x = 4,967,153,742.83
  5. Step 5: Solve for x
    x = 4,967,153,742.83/67,026
  6. Step 6: Final answer
    x = 74,107.86

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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.