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Finding the Fourth Proportional to 117,092.55, 175,639.23 and 28,345.92

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Solution

The fourth proportional to 117,092.55, 175,639.23 and 28,345.92 is: 42,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,092.55 : 175,639.23 = 28,345.92 : x
  2. Step 2: Convert to fraction form
    117,092.55/175,639.23 = 28,345.92/x
  3. Step 3: Cross multiply
    117,092.55x = 175,639.23 × 28,345.92
  4. Step 4: Simplify right side
    117,092.55x = 4,978,655,562.44
  5. Step 5: Solve for x
    x = 4,978,655,562.44/117,092.55
  6. Step 6: Final answer
    x = 42,518.98

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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.