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Finding the Fourth Proportional to 351,359.40, 527,384.70 and 174,066.60

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Solution

The fourth proportional to 351,359.40, 527,384.70 and 174,066.60 is: 261,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,359.40 : 527,384.70 = 174,066.60 : x
  2. Step 2: Convert to fraction form
    351,359.40/527,384.70 = 174,066.60/x
  3. Step 3: Cross multiply
    351,359.40x = 527,384.70 × 174,066.60
  4. Step 4: Simplify right side
    351,359.40x = 91,800,061,621.02
  5. Step 5: Solve for x
    x = 91,800,061,621.02/351,359.40
  6. Step 6: Final answer
    x = 261,271.11

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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.