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Finding the Fourth Proportional to 161,700.80, 242,493.60 and 56,523.20

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Solution

The fourth proportional to 161,700.80, 242,493.60 and 56,523.20 is: 84,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,700.80 : 242,493.60 = 56,523.20 : x
  2. Step 2: Convert to fraction form
    161,700.80/242,493.60 = 56,523.20/x
  3. Step 3: Cross multiply
    161,700.80x = 242,493.60 × 56,523.20
  4. Step 4: Simplify right side
    161,700.80x = 13,706,514,251.52
  5. Step 5: Solve for x
    x = 13,706,514,251.52/161,700.80
  6. Step 6: Final answer
    x = 84,764.67

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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.