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Finding the Fourth Proportional to 417,759.72, 626,663.94 and 118,215.24

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Solution

The fourth proportional to 417,759.72, 626,663.94 and 118,215.24 is: 177,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,759.72 : 626,663.94 = 118,215.24 : x
  2. Step 2: Convert to fraction form
    417,759.72/626,663.94 = 118,215.24/x
  3. Step 3: Cross multiply
    417,759.72x = 626,663.94 × 118,215.24
  4. Step 4: Simplify right side
    417,759.72x = 74,081,228,066.45
  5. Step 5: Solve for x
    x = 74,081,228,066.45/417,759.72
  6. Step 6: Final answer
    x = 177,329.75

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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.