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Finding the Fourth Proportional to 661,855.95, 992,653.11 and 181,959.87

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Solution

The fourth proportional to 661,855.95, 992,653.11 and 181,959.87 is: 272,903.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,855.95 : 992,653.11 = 181,959.87 : x
  2. Step 2: Convert to fraction form
    661,855.95/992,653.11 = 181,959.87/x
  3. Step 3: Cross multiply
    661,855.95x = 992,653.11 × 181,959.87
  4. Step 4: Simplify right side
    661,855.95x = 180,623,030,850.70
  5. Step 5: Solve for x
    x = 180,623,030,850.70/661,855.95
  6. Step 6: Final answer
    x = 272,903.84

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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.