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Finding the Fourth Proportional to 535,505.66, 803,260.37 and 136,146.47

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Solution

The fourth proportional to 535,505.66, 803,260.37 and 136,146.47 is: 204,220.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,505.66 : 803,260.37 = 136,146.47 : x
  2. Step 2: Convert to fraction form
    535,505.66/803,260.37 = 136,146.47/x
  3. Step 3: Cross multiply
    535,505.66x = 803,260.37 × 136,146.47
  4. Step 4: Simplify right side
    535,505.66x = 109,361,063,866.39
  5. Step 5: Solve for x
    x = 109,361,063,866.39/535,505.66
  6. Step 6: Final answer
    x = 204,220.18

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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.