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Finding the Fourth Proportional to 68,482.40, 102,716.64 and 46,437.44

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Solution

The fourth proportional to 68,482.40, 102,716.64 and 46,437.44 is: 69,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,482.40 : 102,716.64 = 46,437.44 : x
  2. Step 2: Convert to fraction form
    68,482.40/102,716.64 = 46,437.44/x
  3. Step 3: Cross multiply
    68,482.40x = 102,716.64 × 46,437.44
  4. Step 4: Simplify right side
    68,482.40x = 4,769,897,807.00
  5. Step 5: Solve for x
    x = 4,769,897,807.00/68,482.40
  6. Step 6: Final answer
    x = 69,651.44

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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.