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Finding the Fourth Proportional to 366,658.02, 549,989.46 and 142,043.40

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Solution

The fourth proportional to 366,658.02, 549,989.46 and 142,043.40 is: 213,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,658.02 : 549,989.46 = 142,043.40 : x
  2. Step 2: Convert to fraction form
    366,658.02/549,989.46 = 142,043.40/x
  3. Step 3: Cross multiply
    366,658.02x = 549,989.46 × 142,043.40
  4. Step 4: Simplify right side
    366,658.02x = 78,122,372,862.56
  5. Step 5: Solve for x
    x = 78,122,372,862.56/366,658.02
  6. Step 6: Final answer
    x = 213,066.04

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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.