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Finding the Fourth Proportional to 317,066.70, 475,662.09 and 117,388.86

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Solution

The fourth proportional to 317,066.70, 475,662.09 and 117,388.86 is: 176,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,066.70 : 475,662.09 = 117,388.86 : x
  2. Step 2: Convert to fraction form
    317,066.70/475,662.09 = 117,388.86/x
  3. Step 3: Cross multiply
    317,066.70x = 475,662.09 × 117,388.86
  4. Step 4: Simplify right side
    317,066.70x = 55,837,430,490.32
  5. Step 5: Solve for x
    x = 55,837,430,490.32/317,066.70
  6. Step 6: Final answer
    x = 176,106.26

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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.