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Finding the Fourth Proportional to 432,145.56, 648,218.34 and 116,602.47

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Solution

The fourth proportional to 432,145.56, 648,218.34 and 116,602.47 is: 174,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,145.56 : 648,218.34 = 116,602.47 : x
  2. Step 2: Convert to fraction form
    432,145.56/648,218.34 = 116,602.47/x
  3. Step 3: Cross multiply
    432,145.56x = 648,218.34 × 116,602.47
  4. Step 4: Simplify right side
    432,145.56x = 75,583,859,543.30
  5. Step 5: Solve for x
    x = 75,583,859,543.30/432,145.56
  6. Step 6: Final answer
    x = 174,903.71

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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.