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Finding the Fourth Proportional to 535,703.60, 803,584.56 and 161,716.88

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Solution

The fourth proportional to 535,703.60, 803,584.56 and 161,716.88 is: 242,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,703.60 : 803,584.56 = 161,716.88 : x
  2. Step 2: Convert to fraction form
    535,703.60/803,584.56 = 161,716.88/x
  3. Step 3: Cross multiply
    535,703.60x = 803,584.56 × 161,716.88
  4. Step 4: Simplify right side
    535,703.60x = 129,953,187,859.37
  5. Step 5: Solve for x
    x = 129,953,187,859.37/535,703.60
  6. Step 6: Final answer
    x = 242,584.12

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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.