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Finding the Fourth Proportional to 364,058.40, 545,941.80 and 127,279.20

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Solution

The fourth proportional to 364,058.40, 545,941.80 and 127,279.20 is: 190,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,058.40 : 545,941.80 = 127,279.20 : x
  2. Step 2: Convert to fraction form
    364,058.40/545,941.80 = 127,279.20/x
  3. Step 3: Cross multiply
    364,058.40x = 545,941.80 × 127,279.20
  4. Step 4: Simplify right side
    364,058.40x = 69,487,035,550.56
  5. Step 5: Solve for x
    x = 69,487,035,550.56/364,058.40
  6. Step 6: Final answer
    x = 190,867.83

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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.