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Finding the Fourth Proportional to 257,225.76, 355,094.76 and 171,327.68

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Solution

The fourth proportional to 257,225.76, 355,094.76 and 171,327.68 is: 236,514.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,225.76 : 355,094.76 = 171,327.68 : x
  2. Step 2: Convert to fraction form
    257,225.76/355,094.76 = 171,327.68/x
  3. Step 3: Cross multiply
    257,225.76x = 355,094.76 × 171,327.68
  4. Step 4: Simplify right side
    257,225.76x = 60,837,561,410.96
  5. Step 5: Solve for x
    x = 60,837,561,410.96/257,225.76
  6. Step 6: Final answer
    x = 236,514.26

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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.