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Finding the Fourth Proportional to 365,300.40, 547,691.40 and 165,716.40

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Solution

The fourth proportional to 365,300.40, 547,691.40 and 165,716.40 is: 248,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,300.40 : 547,691.40 = 165,716.40 : x
  2. Step 2: Convert to fraction form
    365,300.40/547,691.40 = 165,716.40/x
  3. Step 3: Cross multiply
    365,300.40x = 547,691.40 × 165,716.40
  4. Step 4: Simplify right side
    365,300.40x = 90,761,447,118.96
  5. Step 5: Solve for x
    x = 90,761,447,118.96/365,300.40
  6. Step 6: Final answer
    x = 248,457.02

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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.