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Finding the Fourth Proportional to 315,358.64, 473,100.27 and 115,680.76

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Solution

The fourth proportional to 315,358.64, 473,100.27 and 115,680.76 is: 173,543.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,358.64 : 473,100.27 = 115,680.76 : x
  2. Step 2: Convert to fraction form
    315,358.64/473,100.27 = 115,680.76/x
  3. Step 3: Cross multiply
    315,358.64x = 473,100.27 × 115,680.76
  4. Step 4: Simplify right side
    315,358.64x = 54,728,597,498.60
  5. Step 5: Solve for x
    x = 54,728,597,498.60/315,358.64
  6. Step 6: Final answer
    x = 173,543.99

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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.