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Finding the Fourth Proportional to 139,548.08, 209,340.60 and 44,746.64

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Solution

The fourth proportional to 139,548.08, 209,340.60 and 44,746.64 is: 67,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,548.08 : 209,340.60 = 44,746.64 : x
  2. Step 2: Convert to fraction form
    139,548.08/209,340.60 = 44,746.64/x
  3. Step 3: Cross multiply
    139,548.08x = 209,340.60 × 44,746.64
  4. Step 4: Simplify right side
    139,548.08x = 9,367,288,465.58
  5. Step 5: Solve for x
    x = 9,367,288,465.58/139,548.08
  6. Step 6: Final answer
    x = 67,125.89

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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.