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Finding the Fourth Proportional to 79,475.49, 118,999.80 and 41,957.51

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Solution

The fourth proportional to 79,475.49, 118,999.80 and 41,957.51 is: 62,823.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,475.49 : 118,999.80 = 41,957.51 : x
  2. Step 2: Convert to fraction form
    79,475.49/118,999.80 = 41,957.51/x
  3. Step 3: Cross multiply
    79,475.49x = 118,999.80 × 41,957.51
  4. Step 4: Simplify right side
    79,475.49x = 4,992,934,703.50
  5. Step 5: Solve for x
    x = 4,992,934,703.50/79,475.49
  6. Step 6: Final answer
    x = 62,823.58

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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.