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Finding the Fourth Proportional to 315,920.30, 473,963.54 and 113,536.85

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Solution

The fourth proportional to 315,920.30, 473,963.54 and 113,536.85 is: 170,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,920.30 : 473,963.54 = 113,536.85 : x
  2. Step 2: Convert to fraction form
    315,920.30/473,963.54 = 113,536.85/x
  3. Step 3: Cross multiply
    315,920.30x = 473,963.54 × 113,536.85
  4. Step 4: Simplify right side
    315,920.30x = 53,812,324,408.95
  5. Step 5: Solve for x
    x = 53,812,324,408.95/315,920.30
  6. Step 6: Final answer
    x = 170,335.13

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1.5x scale

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.