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Finding the Fourth Proportional to 444,165.12, 666,283.32 and 144,640.08

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Solution

The fourth proportional to 444,165.12, 666,283.32 and 144,640.08 is: 216,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,165.12 : 666,283.32 = 144,640.08 : x
  2. Step 2: Convert to fraction form
    444,165.12/666,283.32 = 144,640.08/x
  3. Step 3: Cross multiply
    444,165.12x = 666,283.32 × 144,640.08
  4. Step 4: Simplify right side
    444,165.12x = 96,371,272,707.47
  5. Step 5: Solve for x
    x = 96,371,272,707.47/444,165.12
  6. Step 6: Final answer
    x = 216,971.73

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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.