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Finding the Fourth Proportional to 364,347.36, 546,609.96 and 139,703.76

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Solution

The fourth proportional to 364,347.36, 546,609.96 and 139,703.76 is: 209,589.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,347.36 : 546,609.96 = 139,703.76 : x
  2. Step 2: Convert to fraction form
    364,347.36/546,609.96 = 139,703.76/x
  3. Step 3: Cross multiply
    364,347.36x = 546,609.96 × 139,703.76
  4. Step 4: Simplify right side
    364,347.36x = 76,363,466,665.45
  5. Step 5: Solve for x
    x = 76,363,466,665.45/364,347.36
  6. Step 6: Final answer
    x = 209,589.74

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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.