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Finding the Fourth Proportional to 480,956.07, 721,426.82 and 165,415.71

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Solution

The fourth proportional to 480,956.07, 721,426.82 and 165,415.71 is: 248,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,956.07 : 721,426.82 = 165,415.71 : x
  2. Step 2: Convert to fraction form
    480,956.07/721,426.82 = 165,415.71/x
  3. Step 3: Cross multiply
    480,956.07x = 721,426.82 × 165,415.71
  4. Step 4: Simplify right side
    480,956.07x = 119,335,328,816.26
  5. Step 5: Solve for x
    x = 119,335,328,816.26/480,956.07
  6. Step 6: Final answer
    x = 248,121.06

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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.