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Finding the Fourth Proportional to 262,353.60, 361,985.76 and 149,238.72

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Solution

The fourth proportional to 262,353.60, 361,985.76 and 149,238.72 is: 205,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,353.60 : 361,985.76 = 149,238.72 : x
  2. Step 2: Convert to fraction form
    262,353.60/361,985.76 = 149,238.72/x
  3. Step 3: Cross multiply
    262,353.60x = 361,985.76 × 149,238.72
  4. Step 4: Simplify right side
    262,353.60x = 54,022,291,480.63
  5. Step 5: Solve for x
    x = 54,022,291,480.63/262,353.60
  6. Step 6: Final answer
    x = 205,914.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.