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Finding the Fourth Proportional to 125,786.59, 188,712.69 and 46,901.50

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Solution

The fourth proportional to 125,786.59, 188,712.69 and 46,901.50 is: 70,364.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,786.59 : 188,712.69 = 46,901.50 : x
  2. Step 2: Convert to fraction form
    125,786.59/188,712.69 = 46,901.50/x
  3. Step 3: Cross multiply
    125,786.59x = 188,712.69 × 46,901.50
  4. Step 4: Simplify right side
    125,786.59x = 8,850,908,230.04
  5. Step 5: Solve for x
    x = 8,850,908,230.04/125,786.59
  6. Step 6: Final answer
    x = 70,364.48

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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.