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Finding the Fourth Proportional to 366,731.52, 549,990.55 and 142,041.84

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Solution

The fourth proportional to 366,731.52, 549,990.55 and 142,041.84 is: 213,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,731.52 : 549,990.55 = 142,041.84 : x
  2. Step 2: Convert to fraction form
    366,731.52/549,990.55 = 142,041.84/x
  3. Step 3: Cross multiply
    366,731.52x = 549,990.55 × 142,041.84
  4. Step 4: Simplify right side
    366,731.52x = 78,121,669,704.61
  5. Step 5: Solve for x
    x = 78,121,669,704.61/366,731.52
  6. Step 6: Final answer
    x = 213,021.42

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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.