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Finding the Fourth Proportional to 492,079.30, 738,118.95 and 176,495.20

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Solution

The fourth proportional to 492,079.30, 738,118.95 and 176,495.20 is: 264,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,079.30 : 738,118.95 = 176,495.20 : x
  2. Step 2: Convert to fraction form
    492,079.30/738,118.95 = 176,495.20/x
  3. Step 3: Cross multiply
    492,079.30x = 738,118.95 × 176,495.20
  4. Step 4: Simplify right side
    492,079.30x = 130,274,451,704.04
  5. Step 5: Solve for x
    x = 130,274,451,704.04/492,079.30
  6. Step 6: Final answer
    x = 264,742.80

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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.