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Finding the Fourth Proportional to 355,266.99, 533,279.87 and 152,963.21

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Solution

The fourth proportional to 355,266.99, 533,279.87 and 152,963.21 is: 229,608.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,266.99 : 533,279.87 = 152,963.21 : x
  2. Step 2: Convert to fraction form
    355,266.99/533,279.87 = 152,963.21/x
  3. Step 3: Cross multiply
    355,266.99x = 533,279.87 × 152,963.21
  4. Step 4: Simplify right side
    355,266.99x = 81,572,200,743.58
  5. Step 5: Solve for x
    x = 81,572,200,743.58/355,266.99
  6. Step 6: Final answer
    x = 229,608.16

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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.