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Finding the Fourth Proportional to 145,733.94, 218,608.74 and 45,901.94

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Solution

The fourth proportional to 145,733.94, 218,608.74 and 45,901.94 is: 68,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,733.94 : 218,608.74 = 45,901.94 : x
  2. Step 2: Convert to fraction form
    145,733.94/218,608.74 = 45,901.94/x
  3. Step 3: Cross multiply
    145,733.94x = 218,608.74 × 45,901.94
  4. Step 4: Simplify right side
    145,733.94x = 10,034,565,813.48
  5. Step 5: Solve for x
    x = 10,034,565,813.48/145,733.94
  6. Step 6: Final answer
    x = 68,855.38

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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.