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Finding the Fourth Proportional to 344,866.60, 516,992.10 and 134,455.60

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Solution

The fourth proportional to 344,866.60, 516,992.10 and 134,455.60 is: 201,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,866.60 : 516,992.10 = 134,455.60 : x
  2. Step 2: Convert to fraction form
    344,866.60/516,992.10 = 134,455.60/x
  3. Step 3: Cross multiply
    344,866.60x = 516,992.10 × 134,455.60
  4. Step 4: Simplify right side
    344,866.60x = 69,512,483,000.76
  5. Step 5: Solve for x
    x = 69,512,483,000.76/344,866.60
  6. Step 6: Final answer
    x = 201,563.40

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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.