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Finding the Fourth Proportional to 139,516.70, 209,793.45 and 116,707.10

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Solution

The fourth proportional to 139,516.70, 209,793.45 and 116,707.10 is: 175,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,516.70 : 209,793.45 = 116,707.10 : x
  2. Step 2: Convert to fraction form
    139,516.70/209,793.45 = 116,707.10/x
  3. Step 3: Cross multiply
    139,516.70x = 209,793.45 × 116,707.10
  4. Step 4: Simplify right side
    139,516.70x = 24,484,385,148.50
  5. Step 5: Solve for x
    x = 24,484,385,148.50/139,516.70
  6. Step 6: Final answer
    x = 175,494.30

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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.