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Finding the Fourth Proportional to 535,805.39, 803,708.03 and 161,828.39

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Solution

The fourth proportional to 535,805.39, 803,708.03 and 161,828.39 is: 242,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,805.39 : 803,708.03 = 161,828.39 : x
  2. Step 2: Convert to fraction form
    535,805.39/803,708.03 = 161,828.39/x
  3. Step 3: Cross multiply
    535,805.39x = 803,708.03 × 161,828.39
  4. Step 4: Simplify right side
    535,805.39x = 130,062,771,697.29
  5. Step 5: Solve for x
    x = 130,062,771,697.29/535,805.39
  6. Step 6: Final answer
    x = 242,742.56

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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.