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Finding the Fourth Proportional to 357,344.21, 535,902.48 and 117,402.41

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Solution

The fourth proportional to 357,344.21, 535,902.48 and 117,402.41 is: 176,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,344.21 : 535,902.48 = 117,402.41 : x
  2. Step 2: Convert to fraction form
    357,344.21/535,902.48 = 117,402.41/x
  3. Step 3: Cross multiply
    357,344.21x = 535,902.48 × 117,402.41
  4. Step 4: Simplify right side
    357,344.21x = 62,916,239,997.46
  5. Step 5: Solve for x
    x = 62,916,239,997.46/357,344.21
  6. Step 6: Final answer
    x = 176,066.21

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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.