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Finding the Fourth Proportional to 471,339.66, 707,120.16 and 155,796.51

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Solution

The fourth proportional to 471,339.66, 707,120.16 and 155,796.51 is: 233,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,339.66 : 707,120.16 = 155,796.51 : x
  2. Step 2: Convert to fraction form
    471,339.66/707,120.16 = 155,796.51/x
  3. Step 3: Cross multiply
    471,339.66x = 707,120.16 × 155,796.51
  4. Step 4: Simplify right side
    471,339.66x = 110,166,853,078.64
  5. Step 5: Solve for x
    x = 110,166,853,078.64/471,339.66
  6. Step 6: Final answer
    x = 233,731.35

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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.