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Finding the Fourth Proportional to 119,314.80, 178,972.20 and 113,482.80

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Solution

The fourth proportional to 119,314.80, 178,972.20 and 113,482.80 is: 170,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,314.80 : 178,972.20 = 113,482.80 : x
  2. Step 2: Convert to fraction form
    119,314.80/178,972.20 = 113,482.80/x
  3. Step 3: Cross multiply
    119,314.80x = 178,972.20 × 113,482.80
  4. Step 4: Simplify right side
    119,314.80x = 20,310,266,378.16
  5. Step 5: Solve for x
    x = 20,310,266,378.16/119,314.80
  6. Step 6: Final answer
    x = 170,224.20

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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.