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Finding the Fourth Proportional to 388,253.15, 581,889.02 and 174,793.75

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Solution

The fourth proportional to 388,253.15, 581,889.02 and 174,793.75 is: 261,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,253.15 : 581,889.02 = 174,793.75 : x
  2. Step 2: Convert to fraction form
    388,253.15/581,889.02 = 174,793.75/x
  3. Step 3: Cross multiply
    388,253.15x = 581,889.02 × 174,793.75
  4. Step 4: Simplify right side
    388,253.15x = 101,710,561,560.93
  5. Step 5: Solve for x
    x = 101,710,561,560.93/388,253.15
  6. Step 6: Final answer
    x = 261,969.70

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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.