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Finding the Fourth Proportional to 355,589.42, 533,023.76 and 127,817.10

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Solution

The fourth proportional to 355,589.42, 533,023.76 and 127,817.10 is: 191,596.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,589.42 : 533,023.76 = 127,817.10 : x
  2. Step 2: Convert to fraction form
    355,589.42/533,023.76 = 127,817.10/x
  3. Step 3: Cross multiply
    355,589.42x = 533,023.76 × 127,817.10
  4. Step 4: Simplify right side
    355,589.42x = 68,129,550,595.21
  5. Step 5: Solve for x
    x = 68,129,550,595.21/355,589.42
  6. Step 6: Final answer
    x = 191,596.12

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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.