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Finding the Fourth Proportional to 574,889.34, 862,268.40 and 154,132.50

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Solution

The fourth proportional to 574,889.34, 862,268.40 and 154,132.50 is: 231,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,889.34 : 862,268.40 = 154,132.50 : x
  2. Step 2: Convert to fraction form
    574,889.34/862,268.40 = 154,132.50/x
  3. Step 3: Cross multiply
    574,889.34x = 862,268.40 × 154,132.50
  4. Step 4: Simplify right side
    574,889.34x = 132,903,584,163
  5. Step 5: Solve for x
    x = 132,903,584,163/574,889.34
  6. Step 6: Final answer
    x = 231,181.16

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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.