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Finding the Fourth Proportional to 171,838.76, 257,602.60 and 61,004.84

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Solution

The fourth proportional to 171,838.76, 257,602.60 and 61,004.84 is: 91,452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,838.76 : 257,602.60 = 61,004.84 : x
  2. Step 2: Convert to fraction form
    171,838.76/257,602.60 = 61,004.84/x
  3. Step 3: Cross multiply
    171,838.76x = 257,602.60 × 61,004.84
  4. Step 4: Simplify right side
    171,838.76x = 15,715,005,396.58
  5. Step 5: Solve for x
    x = 15,715,005,396.58/171,838.76
  6. Step 6: Final answer
    x = 91,452.04

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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.