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Finding the Fourth Proportional to 61,274.46, 91,921.03 and 31,272.32

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Solution

The fourth proportional to 61,274.46, 91,921.03 and 31,272.32 is: 46,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,274.46 : 91,921.03 = 31,272.32 : x
  2. Step 2: Convert to fraction form
    61,274.46/91,921.03 = 31,272.32/x
  3. Step 3: Cross multiply
    61,274.46x = 91,921.03 × 31,272.32
  4. Step 4: Simplify right side
    61,274.46x = 2,874,583,864.89
  5. Step 5: Solve for x
    x = 2,874,583,864.89/61,274.46
  6. Step 6: Final answer
    x = 46,913.25

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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.