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Finding the Fourth Proportional to 254,407.44, 351,064.68 and 141,221.28

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Solution

The fourth proportional to 254,407.44, 351,064.68 and 141,221.28 is: 194,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,407.44 : 351,064.68 = 141,221.28 : x
  2. Step 2: Convert to fraction form
    254,407.44/351,064.68 = 141,221.28/x
  3. Step 3: Cross multiply
    254,407.44x = 351,064.68 × 141,221.28
  4. Step 4: Simplify right side
    254,407.44x = 49,577,803,472.39
  5. Step 5: Solve for x
    x = 49,577,803,472.39/254,407.44
  6. Step 6: Final answer
    x = 194,875.60

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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.