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Finding the Fourth Proportional to 67,716.40, 101,477.40 and 49,807.30

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Solution

The fourth proportional to 67,716.40, 101,477.40 and 49,807.30 is: 74,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,716.40 : 101,477.40 = 49,807.30 : x
  2. Step 2: Convert to fraction form
    67,716.40/101,477.40 = 49,807.30/x
  3. Step 3: Cross multiply
    67,716.40x = 101,477.40 × 49,807.30
  4. Step 4: Simplify right side
    67,716.40x = 5,054,315,305.02
  5. Step 5: Solve for x
    x = 5,054,315,305.02/67,716.40
  6. Step 6: Final answer
    x = 74,639.46

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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.