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Finding the Fourth Proportional to 119,331.52, 178,927.68 and 92,303.68

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Solution

The fourth proportional to 119,331.52, 178,927.68 and 92,303.68 is: 138,401.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,331.52 : 178,927.68 = 92,303.68 : x
  2. Step 2: Convert to fraction form
    119,331.52/178,927.68 = 92,303.68/x
  3. Step 3: Cross multiply
    119,331.52x = 178,927.68 × 92,303.68
  4. Step 4: Simplify right side
    119,331.52x = 16,515,683,317.86
  5. Step 5: Solve for x
    x = 16,515,683,317.86/119,331.52
  6. Step 6: Final answer
    x = 138,401.68

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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.