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Finding the Fourth Proportional to 417,848.63, 626,760.99 and 118,328.50

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Solution

The fourth proportional to 417,848.63, 626,760.99 and 118,328.50 is: 177,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,848.63 : 626,760.99 = 118,328.50 : x
  2. Step 2: Convert to fraction form
    417,848.63/626,760.99 = 118,328.50/x
  3. Step 3: Cross multiply
    417,848.63x = 626,760.99 × 118,328.50
  4. Step 4: Simplify right side
    417,848.63x = 74,163,690,351.43
  5. Step 5: Solve for x
    x = 74,163,690,351.43/417,848.63
  6. Step 6: Final answer
    x = 177,489.37

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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.