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Finding the Fourth Proportional to 79,261.74, 118,920.15 and 49,644.50

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Solution

The fourth proportional to 79,261.74, 118,920.15 and 49,644.50 is: 74,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.74 : 118,920.15 = 49,644.50 : x
  2. Step 2: Convert to fraction form
    79,261.74/118,920.15 = 49,644.50/x
  3. Step 3: Cross multiply
    79,261.74x = 118,920.15 × 49,644.50
  4. Step 4: Simplify right side
    79,261.74x = 5,903,730,792.07
  5. Step 5: Solve for x
    x = 5,903,730,792.07/79,261.74
  6. Step 6: Final answer
    x = 74,483.99

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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.