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Finding the Fourth Proportional to 403,137.60, 604,925.10 and 166,504.20

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Solution

The fourth proportional to 403,137.60, 604,925.10 and 166,504.20 is: 249,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,137.60 : 604,925.10 = 166,504.20 : x
  2. Step 2: Convert to fraction form
    403,137.60/604,925.10 = 166,504.20/x
  3. Step 3: Cross multiply
    403,137.60x = 604,925.10 × 166,504.20
  4. Step 4: Simplify right side
    403,137.60x = 100,722,569,835.42
  5. Step 5: Solve for x
    x = 100,722,569,835.42/403,137.60
  6. Step 6: Final answer
    x = 249,846.63

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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.