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Finding the Fourth Proportional to 119,963.64, 179,970.78 and 45,084.44

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Solution

The fourth proportional to 119,963.64, 179,970.78 and 45,084.44 is: 67,636.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,963.64 : 179,970.78 = 45,084.44 : x
  2. Step 2: Convert to fraction form
    119,963.64/179,970.78 = 45,084.44/x
  3. Step 3: Cross multiply
    119,963.64x = 179,970.78 × 45,084.44
  4. Step 4: Simplify right side
    119,963.64x = 8,113,881,832.66
  5. Step 5: Solve for x
    x = 8,113,881,832.66/119,963.64
  6. Step 6: Final answer
    x = 67,636.18

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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.