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Finding the Fourth Proportional to 61,441.63, 92,161.53 and 19,888.63

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Solution

The fourth proportional to 61,441.63, 92,161.53 and 19,888.63 is: 29,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,441.63 : 92,161.53 = 19,888.63 : x
  2. Step 2: Convert to fraction form
    61,441.63/92,161.53 = 19,888.63/x
  3. Step 3: Cross multiply
    61,441.63x = 92,161.53 × 19,888.63
  4. Step 4: Simplify right side
    61,441.63x = 1,832,966,340.00
  5. Step 5: Solve for x
    x = 1,832,966,340.00/61,441.63
  6. Step 6: Final answer
    x = 29,832.65

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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.