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Finding the Fourth Proportional to 180,264.64, 248,763.05 and 99,690.41

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Solution

The fourth proportional to 180,264.64, 248,763.05 and 99,690.41 is: 137,571.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,264.64 : 248,763.05 = 99,690.41 : x
  2. Step 2: Convert to fraction form
    180,264.64/248,763.05 = 99,690.41/x
  3. Step 3: Cross multiply
    180,264.64x = 248,763.05 × 99,690.41
  4. Step 4: Simplify right side
    180,264.64x = 24,799,290,944.65
  5. Step 5: Solve for x
    x = 24,799,290,944.65/180,264.64
  6. Step 6: Final answer
    x = 137,571.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.