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Finding the Fourth Proportional to 492,254.45, 738,506.22 and 137,268.51

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Solution

The fourth proportional to 492,254.45, 738,506.22 and 137,268.51 is: 205,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,254.45 : 738,506.22 = 137,268.51 : x
  2. Step 2: Convert to fraction form
    492,254.45/738,506.22 = 137,268.51/x
  3. Step 3: Cross multiply
    492,254.45x = 738,506.22 × 137,268.51
  4. Step 4: Simplify right side
    492,254.45x = 101,373,648,445.13
  5. Step 5: Solve for x
    x = 101,373,648,445.13/492,254.45
  6. Step 6: Final answer
    x = 205,937.50

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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.