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Finding the Fourth Proportional to 323,998.28, 486,066.52 and 124,316.98

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Solution

The fourth proportional to 323,998.28, 486,066.52 and 124,316.98 is: 186,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,998.28 : 486,066.52 = 124,316.98 : x
  2. Step 2: Convert to fraction form
    323,998.28/486,066.52 = 124,316.98/x
  3. Step 3: Cross multiply
    323,998.28x = 486,066.52 × 124,316.98
  4. Step 4: Simplify right side
    323,998.28x = 60,426,320,785.74
  5. Step 5: Solve for x
    x = 60,426,320,785.74/323,998.28
  6. Step 6: Final answer
    x = 186,501.98

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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.