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Finding the Fourth Proportional to 315,262.97, 473,146.64 and 165,591.53

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Solution

The fourth proportional to 315,262.97, 473,146.64 and 165,591.53 is: 248,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,262.97 : 473,146.64 = 165,591.53 : x
  2. Step 2: Convert to fraction form
    315,262.97/473,146.64 = 165,591.53/x
  3. Step 3: Cross multiply
    315,262.97x = 473,146.64 × 165,591.53
  4. Step 4: Simplify right side
    315,262.97x = 78,349,072,838.27
  5. Step 5: Solve for x
    x = 78,349,072,838.27/315,262.97
  6. Step 6: Final answer
    x = 248,519.74

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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.