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Finding the Fourth Proportional to 365,465.55, 548,291.76 and 140,765.68

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Solution

The fourth proportional to 365,465.55, 548,291.76 and 140,765.68 is: 211,184.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,465.55 : 548,291.76 = 140,765.68 : x
  2. Step 2: Convert to fraction form
    365,465.55/548,291.76 = 140,765.68/x
  3. Step 3: Cross multiply
    365,465.55x = 548,291.76 × 140,765.68
  4. Step 4: Simplify right side
    365,465.55x = 77,180,662,434.80
  5. Step 5: Solve for x
    x = 77,180,662,434.80/365,465.55
  6. Step 6: Final answer
    x = 211,184.51

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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.