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Finding the Fourth Proportional to 118,477.80, 177,725.86 and 39,592.30

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Solution

The fourth proportional to 118,477.80, 177,725.86 and 39,592.30 is: 59,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,477.80 : 177,725.86 = 39,592.30 : x
  2. Step 2: Convert to fraction form
    118,477.80/177,725.86 = 39,592.30/x
  3. Step 3: Cross multiply
    118,477.80x = 177,725.86 × 39,592.30
  4. Step 4: Simplify right side
    118,477.80x = 7,036,575,566.88
  5. Step 5: Solve for x
    x = 7,036,575,566.88/118,477.80
  6. Step 6: Final answer
    x = 59,391.51

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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.