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Finding the Fourth Proportional to 362,785.28, 544,178.53 and 138,094.12

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Solution

The fourth proportional to 362,785.28, 544,178.53 and 138,094.12 is: 207,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,785.28 : 544,178.53 = 138,094.12 : x
  2. Step 2: Convert to fraction form
    362,785.28/544,178.53 = 138,094.12/x
  3. Step 3: Cross multiply
    362,785.28x = 544,178.53 × 138,094.12
  4. Step 4: Simplify right side
    362,785.28x = 75,147,852,502.35
  5. Step 5: Solve for x
    x = 75,147,852,502.35/362,785.28
  6. Step 6: Final answer
    x = 207,141.40

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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.