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Finding the Fourth Proportional to 118,371.46, 177,566.46 and 39,485.61

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Solution

The fourth proportional to 118,371.46, 177,566.46 and 39,485.61 is: 59,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,371.46 : 177,566.46 = 39,485.61 : x
  2. Step 2: Convert to fraction form
    118,371.46/177,566.46 = 39,485.61/x
  3. Step 3: Cross multiply
    118,371.46x = 177,566.46 × 39,485.61
  4. Step 4: Simplify right side
    118,371.46x = 7,011,319,988.64
  5. Step 5: Solve for x
    x = 7,011,319,988.64/118,371.46
  6. Step 6: Final answer
    x = 59,231.51

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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.