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Finding the Fourth Proportional to 535,705.22, 803,562.69 and 136,346.47

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Solution

The fourth proportional to 535,705.22, 803,562.69 and 136,346.47 is: 204,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,705.22 : 803,562.69 = 136,346.47 : x
  2. Step 2: Convert to fraction form
    535,705.22/803,562.69 = 136,346.47/x
  3. Step 3: Cross multiply
    535,705.22x = 803,562.69 × 136,346.47
  4. Step 4: Simplify right side
    535,705.22x = 109,562,932,187.39
  5. Step 5: Solve for x
    x = 109,562,932,187.39/535,705.22
  6. Step 6: Final answer
    x = 204,520.93

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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.