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Finding the Fourth Proportional to 403,955.04, 605,934.08 and 123,471.20

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Solution

The fourth proportional to 403,955.04, 605,934.08 and 123,471.20 is: 185,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,955.04 : 605,934.08 = 123,471.20 : x
  2. Step 2: Convert to fraction form
    403,955.04/605,934.08 = 123,471.20/x
  3. Step 3: Cross multiply
    403,955.04x = 605,934.08 × 123,471.20
  4. Step 4: Simplify right side
    403,955.04x = 74,815,407,978.50
  5. Step 5: Solve for x
    x = 74,815,407,978.50/403,955.04
  6. Step 6: Final answer
    x = 185,207.26

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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.