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Finding the Fourth Proportional to 117,816.93, 176,700.69 and 38,913.21

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Solution

The fourth proportional to 117,816.93, 176,700.69 and 38,913.21 is: 58,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,816.93 : 176,700.69 = 38,913.21 : x
  2. Step 2: Convert to fraction form
    117,816.93/176,700.69 = 38,913.21/x
  3. Step 3: Cross multiply
    117,816.93x = 176,700.69 × 38,913.21
  4. Step 4: Simplify right side
    117,816.93x = 6,875,991,057.11
  5. Step 5: Solve for x
    x = 6,875,991,057.11/117,816.93
  6. Step 6: Final answer
    x = 58,361.66

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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.