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Finding the Fourth Proportional to 243,044.40, 364,566.60 and 76,832.40

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Solution

The fourth proportional to 243,044.40, 364,566.60 and 76,832.40 is: 115,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,044.40 : 364,566.60 = 76,832.40 : x
  2. Step 2: Convert to fraction form
    243,044.40/364,566.60 = 76,832.40/x
  3. Step 3: Cross multiply
    243,044.40x = 364,566.60 × 76,832.40
  4. Step 4: Simplify right side
    243,044.40x = 28,010,526,837.84
  5. Step 5: Solve for x
    x = 28,010,526,837.84/243,044.40
  6. Step 6: Final answer
    x = 115,248.60

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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.