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Finding the Fourth Proportional to 364,216.38, 546,160.68 and 139,419.52

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Solution

The fourth proportional to 364,216.38, 546,160.68 and 139,419.52 is: 209,066.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,216.38 : 546,160.68 = 139,419.52 : x
  2. Step 2: Convert to fraction form
    364,216.38/546,160.68 = 139,419.52/x
  3. Step 3: Cross multiply
    364,216.38x = 546,160.68 × 139,419.52
  4. Step 4: Simplify right side
    364,216.38x = 76,145,459,848.47
  5. Step 5: Solve for x
    x = 76,145,459,848.47/364,216.38
  6. Step 6: Final answer
    x = 209,066.54

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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.