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Finding the Fourth Proportional to 79,318.32, 119,008.64 and 34,913.95

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Solution

The fourth proportional to 79,318.32, 119,008.64 and 34,913.95 is: 52,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,318.32 : 119,008.64 = 34,913.95 : x
  2. Step 2: Convert to fraction form
    79,318.32/119,008.64 = 34,913.95/x
  3. Step 3: Cross multiply
    79,318.32x = 119,008.64 × 34,913.95
  4. Step 4: Simplify right side
    79,318.32x = 4,155,060,936.92
  5. Step 5: Solve for x
    x = 4,155,060,936.92/79,318.32
  6. Step 6: Final answer
    x = 52,384.63

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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.