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Finding the Fourth Proportional to 403,252.40, 604,619.40 and 166,689.20

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Solution

The fourth proportional to 403,252.40, 604,619.40 and 166,689.20 is: 249,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,252.40 : 604,619.40 = 166,689.20 : x
  2. Step 2: Convert to fraction form
    403,252.40/604,619.40 = 166,689.20/x
  3. Step 3: Cross multiply
    403,252.40x = 604,619.40 × 166,689.20
  4. Step 4: Simplify right side
    403,252.40x = 100,783,524,090.48
  5. Step 5: Solve for x
    x = 100,783,524,090.48/403,252.40
  6. Step 6: Final answer
    x = 249,926.66

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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.