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Finding the Fourth Proportional to 315,593.65, 473,452.21 and 115,915.54

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Solution

The fourth proportional to 315,593.65, 473,452.21 and 115,915.54 is: 173,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,593.65 : 473,452.21 = 115,915.54 : x
  2. Step 2: Convert to fraction form
    315,593.65/473,452.21 = 115,915.54/x
  3. Step 3: Cross multiply
    315,593.65x = 473,452.21 × 115,915.54
  4. Step 4: Simplify right side
    315,593.65x = 54,880,467,402.71
  5. Step 5: Solve for x
    x = 54,880,467,402.71/315,593.65
  6. Step 6: Final answer
    x = 173,895.98

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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.