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Finding the Fourth Proportional to 61,153.80, 84,409.74 and 36,017.88

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Solution

The fourth proportional to 61,153.80, 84,409.74 and 36,017.88 is: 49,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,153.80 : 84,409.74 = 36,017.88 : x
  2. Step 2: Convert to fraction form
    61,153.80/84,409.74 = 36,017.88/x
  3. Step 3: Cross multiply
    61,153.80x = 84,409.74 × 36,017.88
  4. Step 4: Simplify right side
    61,153.80x = 3,040,259,886.15
  5. Step 5: Solve for x
    x = 3,040,259,886.15/61,153.80
  6. Step 6: Final answer
    x = 49,714.98

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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.