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Finding the Fourth Proportional to 323,685.61, 446,688.05 and 187,800.46

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Solution

The fourth proportional to 323,685.61, 446,688.05 and 187,800.46 is: 259,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,685.61 : 446,688.05 = 187,800.46 : x
  2. Step 2: Convert to fraction form
    323,685.61/446,688.05 = 187,800.46/x
  3. Step 3: Cross multiply
    323,685.61x = 446,688.05 × 187,800.46
  4. Step 4: Simplify right side
    323,685.61x = 83,888,219,210.78
  5. Step 5: Solve for x
    x = 83,888,219,210.78/323,685.61
  6. Step 6: Final answer
    x = 259,165.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.