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Finding the Fourth Proportional to 535,836.40, 803,462.60 and 161,810.80

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Solution

The fourth proportional to 535,836.40, 803,462.60 and 161,810.80 is: 242,628.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,836.40 : 803,462.60 = 161,810.80 : x
  2. Step 2: Convert to fraction form
    535,836.40/803,462.60 = 161,810.80/x
  3. Step 3: Cross multiply
    535,836.40x = 803,462.60 × 161,810.80
  4. Step 4: Simplify right side
    535,836.40x = 130,008,926,076.08
  5. Step 5: Solve for x
    x = 130,008,926,076.08/535,836.40
  6. Step 6: Final answer
    x = 242,628.02

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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.