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Finding the Fourth Proportional to 161,742.30, 242,620.65 and 61,950.30

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Solution

The fourth proportional to 161,742.30, 242,620.65 and 61,950.30 is: 92,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,742.30 : 242,620.65 = 61,950.30 : x
  2. Step 2: Convert to fraction form
    161,742.30/242,620.65 = 61,950.30/x
  3. Step 3: Cross multiply
    161,742.30x = 242,620.65 × 61,950.30
  4. Step 4: Simplify right side
    161,742.30x = 15,030,422,053.70
  5. Step 5: Solve for x
    x = 15,030,422,053.70/161,742.30
  6. Step 6: Final answer
    x = 92,928.21

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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.