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Finding the Fourth Proportional to 315,600.66, 473,225.85 and 105,123.78

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Solution

The fourth proportional to 315,600.66, 473,225.85 and 105,123.78 is: 157,627.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,600.66 : 473,225.85 = 105,123.78 : x
  2. Step 2: Convert to fraction form
    315,600.66/473,225.85 = 105,123.78/x
  3. Step 3: Cross multiply
    315,600.66x = 473,225.85 × 105,123.78
  4. Step 4: Simplify right side
    315,600.66x = 49,747,290,145.71
  5. Step 5: Solve for x
    x = 49,747,290,145.71/315,600.66
  6. Step 6: Final answer
    x = 157,627.33

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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.