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Finding the Fourth Proportional to 269,953.83, 372,520.95 and 155,214.24

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Solution

The fourth proportional to 269,953.83, 372,520.95 and 155,214.24 is: 214,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,953.83 : 372,520.95 = 155,214.24 : x
  2. Step 2: Convert to fraction form
    269,953.83/372,520.95 = 155,214.24/x
  3. Step 3: Cross multiply
    269,953.83x = 372,520.95 × 155,214.24
  4. Step 4: Simplify right side
    269,953.83x = 57,820,556,254.75
  5. Step 5: Solve for x
    x = 57,820,556,254.75/269,953.83
  6. Step 6: Final answer
    x = 214,186.83

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1.5x scale

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.