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Finding the Fourth Proportional to 125,912.10, 188,846.55 and 46,985.70

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Solution

The fourth proportional to 125,912.10, 188,846.55 and 46,985.70 is: 70,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,912.10 : 188,846.55 = 46,985.70 : x
  2. Step 2: Convert to fraction form
    125,912.10/188,846.55 = 46,985.70/x
  3. Step 3: Cross multiply
    125,912.10x = 188,846.55 × 46,985.70
  4. Step 4: Simplify right side
    125,912.10x = 8,873,087,344.34
  5. Step 5: Solve for x
    x = 8,873,087,344.34/125,912.10
  6. Step 6: Final answer
    x = 70,470.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.