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Finding the Fourth Proportional to 61,404.30, 92,106.45 and 19,851.30

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Solution

The fourth proportional to 61,404.30, 92,106.45 and 19,851.30 is: 29,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,404.30 : 92,106.45 = 19,851.30 : x
  2. Step 2: Convert to fraction form
    61,404.30/92,106.45 = 19,851.30/x
  3. Step 3: Cross multiply
    61,404.30x = 92,106.45 × 19,851.30
  4. Step 4: Simplify right side
    61,404.30x = 1,828,432,770.89
  5. Step 5: Solve for x
    x = 1,828,432,770.89/61,404.30
  6. Step 6: Final answer
    x = 29,776.95

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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.