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Finding the Fourth Proportional to 171,669.78, 257,455.53 and 59,320.62

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Solution

The fourth proportional to 171,669.78, 257,455.53 and 59,320.62 is: 88,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,669.78 : 257,455.53 = 59,320.62 : x
  2. Step 2: Convert to fraction form
    171,669.78/257,455.53 = 59,320.62/x
  3. Step 3: Cross multiply
    171,669.78x = 257,455.53 × 59,320.62
  4. Step 4: Simplify right side
    171,669.78x = 15,272,421,662.03
  5. Step 5: Solve for x
    x = 15,272,421,662.03/171,669.78
  6. Step 6: Final answer
    x = 88,963.95

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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.