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Finding the Fourth Proportional to 243,961.74, 365,905.62 and 66,482.91

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Solution

The fourth proportional to 243,961.74, 365,905.62 and 66,482.91 is: 99,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,961.74 : 365,905.62 = 66,482.91 : x
  2. Step 2: Convert to fraction form
    243,961.74/365,905.62 = 66,482.91/x
  3. Step 3: Cross multiply
    243,961.74x = 365,905.62 × 66,482.91
  4. Step 4: Simplify right side
    243,961.74x = 24,326,470,402.95
  5. Step 5: Solve for x
    x = 24,326,470,402.95/243,961.74
  6. Step 6: Final answer
    x = 99,714.28

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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.