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Finding the Fourth Proportional to 161,962.40, 242,765.40 and 56,727.20

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Solution

The fourth proportional to 161,962.40, 242,765.40 and 56,727.20 is: 85,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,962.40 : 242,765.40 = 56,727.20 : x
  2. Step 2: Convert to fraction form
    161,962.40/242,765.40 = 56,727.20/x
  3. Step 3: Cross multiply
    161,962.40x = 242,765.40 × 56,727.20
  4. Step 4: Simplify right side
    161,962.40x = 13,771,401,398.88
  5. Step 5: Solve for x
    x = 13,771,401,398.88/161,962.40
  6. Step 6: Final answer
    x = 85,028.39

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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.