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Finding the Fourth Proportional to 324,666.10, 486,999.15 and 88,008.40

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Solution

The fourth proportional to 324,666.10, 486,999.15 and 88,008.40 is: 132,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,666.10 : 486,999.15 = 88,008.40 : x
  2. Step 2: Convert to fraction form
    324,666.10/486,999.15 = 88,008.40/x
  3. Step 3: Cross multiply
    324,666.10x = 486,999.15 × 88,008.40
  4. Step 4: Simplify right side
    324,666.10x = 42,860,015,992.86
  5. Step 5: Solve for x
    x = 42,860,015,992.86/324,666.10
  6. Step 6: Final answer
    x = 132,012.60

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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.