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Finding the Fourth Proportional to 139,830.62, 209,664.92 and 95,510.94

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Solution

The fourth proportional to 139,830.62, 209,664.92 and 95,510.94 is: 143,211.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,830.62 : 209,664.92 = 95,510.94 : x
  2. Step 2: Convert to fraction form
    139,830.62/209,664.92 = 95,510.94/x
  3. Step 3: Cross multiply
    139,830.62x = 209,664.92 × 95,510.94
  4. Step 4: Simplify right side
    139,830.62x = 20,025,293,594.22
  5. Step 5: Solve for x
    x = 20,025,293,594.22/139,830.62
  6. Step 6: Final answer
    x = 143,211.08

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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.