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Finding the Fourth Proportional to 535,613.68, 803,425.07 and 136,254.79

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Solution

The fourth proportional to 535,613.68, 803,425.07 and 136,254.79 is: 204,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,613.68 : 803,425.07 = 136,254.79 : x
  2. Step 2: Convert to fraction form
    535,613.68/803,425.07 = 136,254.79/x
  3. Step 3: Cross multiply
    535,613.68x = 803,425.07 × 136,254.79
  4. Step 4: Simplify right side
    535,613.68x = 109,470,514,772.07
  5. Step 5: Solve for x
    x = 109,470,514,772.07/535,613.68
  6. Step 6: Final answer
    x = 204,383.34

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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.