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Finding the Fourth Proportional to 315,818.33, 473,876.90 and 163,934.69

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Solution

The fourth proportional to 315,818.33, 473,876.90 and 163,934.69 is: 245,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,818.33 : 473,876.90 = 163,934.69 : x
  2. Step 2: Convert to fraction form
    315,818.33/473,876.90 = 163,934.69/x
  3. Step 3: Cross multiply
    315,818.33x = 473,876.90 × 163,934.69
  4. Step 4: Simplify right side
    315,818.33x = 77,684,860,125.36
  5. Step 5: Solve for x
    x = 77,684,860,125.36/315,818.33
  6. Step 6: Final answer
    x = 245,979.58

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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.