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Finding the Fourth Proportional to 208,606.60, 313,007.10 and 156,118.60

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Solution

The fourth proportional to 208,606.60, 313,007.10 and 156,118.60 is: 234,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,606.60 : 313,007.10 = 156,118.60 : x
  2. Step 2: Convert to fraction form
    208,606.60/313,007.10 = 156,118.60/x
  3. Step 3: Cross multiply
    208,606.60x = 313,007.10 × 156,118.60
  4. Step 4: Simplify right side
    208,606.60x = 48,866,230,242.06
  5. Step 5: Solve for x
    x = 48,866,230,242.06/208,606.60
  6. Step 6: Final answer
    x = 234,250.64

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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.