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Finding the Fourth Proportional to 535,617.50, 803,422.60 and 136,254.69

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Solution

The fourth proportional to 535,617.50, 803,422.60 and 136,254.69 is: 204,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,617.50 : 803,422.60 = 136,254.69 : x
  2. Step 2: Convert to fraction form
    535,617.50/803,422.60 = 136,254.69/x
  3. Step 3: Cross multiply
    535,617.50x = 803,422.60 × 136,254.69
  4. Step 4: Simplify right side
    535,617.50x = 109,470,096,961.36
  5. Step 5: Solve for x
    x = 109,470,096,961.36/535,617.50
  6. Step 6: Final answer
    x = 204,381.11

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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.