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Finding the Fourth Proportional to 357,445.86, 535,909.16 and 167,808.66

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Solution

The fourth proportional to 357,445.86, 535,909.16 and 167,808.66 is: 251,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,445.86 : 535,909.16 = 167,808.66 : x
  2. Step 2: Convert to fraction form
    357,445.86/535,909.16 = 167,808.66/x
  3. Step 3: Cross multiply
    357,445.86x = 535,909.16 × 167,808.66
  4. Step 4: Simplify right side
    357,445.86x = 89,930,199,445.68
  5. Step 5: Solve for x
    x = 89,930,199,445.68/357,445.86
  6. Step 6: Final answer
    x = 251,591.11

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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.