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Finding the Fourth Proportional to 354,370.60, 531,543.10 and 144,002.60

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Solution

The fourth proportional to 354,370.60, 531,543.10 and 144,002.60 is: 215,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,370.60 : 531,543.10 = 144,002.60 : x
  2. Step 2: Convert to fraction form
    354,370.60/531,543.10 = 144,002.60/x
  3. Step 3: Cross multiply
    354,370.60x = 531,543.10 × 144,002.60
  4. Step 4: Simplify right side
    354,370.60x = 76,543,588,412.06
  5. Step 5: Solve for x
    x = 76,543,588,412.06/354,370.60
  6. Step 6: Final answer
    x = 215,998.70

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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.