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Finding the Fourth Proportional to 118,376.48, 177,573.96 and 39,490.62

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Solution

The fourth proportional to 118,376.48, 177,573.96 and 39,490.62 is: 59,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,376.48 : 177,573.96 = 39,490.62 : x
  2. Step 2: Convert to fraction form
    118,376.48/177,573.96 = 39,490.62/x
  3. Step 3: Cross multiply
    118,376.48x = 177,573.96 × 39,490.62
  4. Step 4: Simplify right side
    118,376.48x = 7,012,505,776.26
  5. Step 5: Solve for x
    x = 7,012,505,776.26/118,376.48
  6. Step 6: Final answer
    x = 59,239.01

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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.