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Finding the Fourth Proportional to 61,722.36, 92,547.90 and 54,341.64

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Solution

The fourth proportional to 61,722.36, 92,547.90 and 54,341.64 is: 81,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,722.36 : 92,547.90 = 54,341.64 : x
  2. Step 2: Convert to fraction form
    61,722.36/92,547.90 = 54,341.64/x
  3. Step 3: Cross multiply
    61,722.36x = 92,547.90 × 54,341.64
  4. Step 4: Simplify right side
    61,722.36x = 5,029,204,664.56
  5. Step 5: Solve for x
    x = 5,029,204,664.56/61,722.36
  6. Step 6: Final answer
    x = 81,481.08

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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.