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Finding the Fourth Proportional to 161,990.80, 242,813.40 and 62,112.40

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Solution

The fourth proportional to 161,990.80, 242,813.40 and 62,112.40 is: 93,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,990.80 : 242,813.40 = 62,112.40 : x
  2. Step 2: Convert to fraction form
    161,990.80/242,813.40 = 62,112.40/x
  3. Step 3: Cross multiply
    161,990.80x = 242,813.40 × 62,112.40
  4. Step 4: Simplify right side
    161,990.80x = 15,081,723,026.16
  5. Step 5: Solve for x
    x = 15,081,723,026.16/161,990.80
  6. Step 6: Final answer
    x = 93,102.34

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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.