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Finding the Fourth Proportional to 147,115, 203,018.72 and 80,047.48

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Solution

The fourth proportional to 147,115, 203,018.72 and 80,047.48 is: 110,465.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,115 : 203,018.72 = 80,047.48 : x
  2. Step 2: Convert to fraction form
    147,115/203,018.72 = 80,047.48/x
  3. Step 3: Cross multiply
    147,115x = 203,018.72 × 80,047.48
  4. Step 4: Simplify right side
    147,115x = 16,251,136,928.83
  5. Step 5: Solve for x
    x = 16,251,136,928.83/147,115
  6. Step 6: Final answer
    x = 110,465.53

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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.