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Finding the Fourth Proportional to 366,442.80, 549,344.20 and 141,956.40

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Solution

The fourth proportional to 366,442.80, 549,344.20 and 141,956.40 is: 212,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,442.80 : 549,344.20 = 141,956.40 : x
  2. Step 2: Convert to fraction form
    366,442.80/549,344.20 = 141,956.40/x
  3. Step 3: Cross multiply
    366,442.80x = 549,344.20 × 141,956.40
  4. Step 4: Simplify right side
    366,442.80x = 77,982,924,992.88
  5. Step 5: Solve for x
    x = 77,982,924,992.88/366,442.80
  6. Step 6: Final answer
    x = 212,810.64

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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.