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Finding the Fourth Proportional to 139,509.92, 209,308.08 and 48,333.08

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Solution

The fourth proportional to 139,509.92, 209,308.08 and 48,333.08 is: 72,514.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,509.92 : 209,308.08 = 48,333.08 : x
  2. Step 2: Convert to fraction form
    139,509.92/209,308.08 = 48,333.08/x
  3. Step 3: Cross multiply
    139,509.92x = 209,308.08 × 48,333.08
  4. Step 4: Simplify right side
    139,509.92x = 10,116,504,175.29
  5. Step 5: Solve for x
    x = 10,116,504,175.29/139,509.92
  6. Step 6: Final answer
    x = 72,514.59

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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.