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Finding the Fourth Proportional to 51,123.60, 76,687.80 and 16,064.40

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Solution

The fourth proportional to 51,123.60, 76,687.80 and 16,064.40 is: 24,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,123.60 : 76,687.80 = 16,064.40 : x
  2. Step 2: Convert to fraction form
    51,123.60/76,687.80 = 16,064.40/x
  3. Step 3: Cross multiply
    51,123.60x = 76,687.80 × 16,064.40
  4. Step 4: Simplify right side
    51,123.60x = 1,231,943,494.32
  5. Step 5: Solve for x
    x = 1,231,943,494.32/51,123.60
  6. Step 6: Final answer
    x = 24,097.35

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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.