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Finding the Fourth Proportional to 586,774.60, 880,161.90 and 143,542.60

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Solution

The fourth proportional to 586,774.60, 880,161.90 and 143,542.60 is: 215,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,774.60 : 880,161.90 = 143,542.60 : x
  2. Step 2: Convert to fraction form
    586,774.60/880,161.90 = 143,542.60/x
  3. Step 3: Cross multiply
    586,774.60x = 880,161.90 × 143,542.60
  4. Step 4: Simplify right side
    586,774.60x = 126,340,727,546.94
  5. Step 5: Solve for x
    x = 126,340,727,546.94/586,774.60
  6. Step 6: Final answer
    x = 215,313.90

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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.