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Finding the Fourth Proportional to 180,190.40, 248,661.36 and 99,621.32

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Solution

The fourth proportional to 180,190.40, 248,661.36 and 99,621.32 is: 137,476.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,190.40 : 248,661.36 = 99,621.32 : x
  2. Step 2: Convert to fraction form
    180,190.40/248,661.36 = 99,621.32/x
  3. Step 3: Cross multiply
    180,190.40x = 248,661.36 × 99,621.32
  4. Step 4: Simplify right side
    180,190.40x = 24,771,971,672.89
  5. Step 5: Solve for x
    x = 24,771,971,672.89/180,190.40
  6. Step 6: Final answer
    x = 137,476.65

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