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Finding the Fourth Proportional to 308,711.66, 463,135.55 and 92,561.81

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Solution

The fourth proportional to 308,711.66, 463,135.55 and 92,561.81 is: 138,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,711.66 : 463,135.55 = 92,561.81 : x
  2. Step 2: Convert to fraction form
    308,711.66/463,135.55 = 92,561.81/x
  3. Step 3: Cross multiply
    308,711.66x = 463,135.55 × 92,561.81
  4. Step 4: Simplify right side
    308,711.66x = 42,868,662,004.86
  5. Step 5: Solve for x
    x = 42,868,662,004.86/308,711.66
  6. Step 6: Final answer
    x = 138,863.11

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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.