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Finding the Fourth Proportional to 326,124.30, 488,943.45 and 168,465.90

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Solution

The fourth proportional to 326,124.30, 488,943.45 and 168,465.90 is: 252,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,124.30 : 488,943.45 = 168,465.90 : x
  2. Step 2: Convert to fraction form
    326,124.30/488,943.45 = 168,465.90/x
  3. Step 3: Cross multiply
    326,124.30x = 488,943.45 × 168,465.90
  4. Step 4: Simplify right side
    326,124.30x = 82,370,298,353.36
  5. Step 5: Solve for x
    x = 82,370,298,353.36/326,124.30
  6. Step 6: Final answer
    x = 252,573.32

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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.