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Finding the Fourth Proportional to 49,687.58, 74,562.80 and 45,017.01

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Solution

The fourth proportional to 49,687.58, 74,562.80 and 45,017.01 is: 67,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,687.58 : 74,562.80 = 45,017.01 : x
  2. Step 2: Convert to fraction form
    49,687.58/74,562.80 = 45,017.01/x
  3. Step 3: Cross multiply
    49,687.58x = 74,562.80 × 45,017.01
  4. Step 4: Simplify right side
    49,687.58x = 3,356,594,088.14
  5. Step 5: Solve for x
    x = 3,356,594,088.14/49,687.58
  6. Step 6: Final answer
    x = 67,553.98

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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.