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Finding the Fourth Proportional to 103,915.80, 155,894.80 and 32,849.54

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Solution

The fourth proportional to 103,915.80, 155,894.80 and 32,849.54 is: 49,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,915.80 : 155,894.80 = 32,849.54 : x
  2. Step 2: Convert to fraction form
    103,915.80/155,894.80 = 32,849.54/x
  3. Step 3: Cross multiply
    103,915.80x = 155,894.80 × 32,849.54
  4. Step 4: Simplify right side
    103,915.80x = 5,121,071,771.04
  5. Step 5: Solve for x
    x = 5,121,071,771.04/103,915.80
  6. Step 6: Final answer
    x = 49,280.98

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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.