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Finding the Fourth Proportional to 161,476.60, 242,231.40 and 61,720.76

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Solution

The fourth proportional to 161,476.60, 242,231.40 and 61,720.76 is: 92,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,476.60 : 242,231.40 = 61,720.76 : x
  2. Step 2: Convert to fraction form
    161,476.60/242,231.40 = 61,720.76/x
  3. Step 3: Cross multiply
    161,476.60x = 242,231.40 × 61,720.76
  4. Step 4: Simplify right side
    161,476.60x = 14,950,706,103.86
  5. Step 5: Solve for x
    x = 14,950,706,103.86/161,476.60
  6. Step 6: Final answer
    x = 92,587.45

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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.