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Finding the Fourth Proportional to 117,985.68, 176,830.70 and 92,926.71

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Solution

The fourth proportional to 117,985.68, 176,830.70 and 92,926.71 is: 139,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985.68 : 176,830.70 = 92,926.71 : x
  2. Step 2: Convert to fraction form
    117,985.68/176,830.70 = 92,926.71/x
  3. Step 3: Cross multiply
    117,985.68x = 176,830.70 × 92,926.71
  4. Step 4: Simplify right side
    117,985.68x = 16,432,294,713.36
  5. Step 5: Solve for x
    x = 16,432,294,713.36/117,985.68
  6. Step 6: Final answer
    x = 139,273.64

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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.