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Finding the Fourth Proportional to 364,430.75, 546,593.27 and 139,847.72

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Solution

The fourth proportional to 364,430.75, 546,593.27 and 139,847.72 is: 209,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,430.75 : 546,593.27 = 139,847.72 : x
  2. Step 2: Convert to fraction form
    364,430.75/546,593.27 = 139,847.72/x
  3. Step 3: Cross multiply
    364,430.75x = 546,593.27 × 139,847.72
  4. Step 4: Simplify right side
    364,430.75x = 76,439,819,144.64
  5. Step 5: Solve for x
    x = 76,439,819,144.64/364,430.75
  6. Step 6: Final answer
    x = 209,751.29

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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.