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Finding the Fourth Proportional to 181,805.60, 272,489.70 and 93,013.40

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Solution

The fourth proportional to 181,805.60, 272,489.70 and 93,013.40 is: 139,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,805.60 : 272,489.70 = 93,013.40 : x
  2. Step 2: Convert to fraction form
    181,805.60/272,489.70 = 93,013.40/x
  3. Step 3: Cross multiply
    181,805.60x = 272,489.70 × 93,013.40
  4. Step 4: Simplify right side
    181,805.60x = 25,345,193,461.98
  5. Step 5: Solve for x
    x = 25,345,193,461.98/181,805.60
  6. Step 6: Final answer
    x = 139,408.21

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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.