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Finding the Fourth Proportional to 399,566.03, 599,585.50 and 147,023.86

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Solution

The fourth proportional to 399,566.03, 599,585.50 and 147,023.86 is: 220,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,566.03 : 599,585.50 = 147,023.86 : x
  2. Step 2: Convert to fraction form
    399,566.03/599,585.50 = 147,023.86/x
  3. Step 3: Cross multiply
    399,566.03x = 599,585.50 × 147,023.86
  4. Step 4: Simplify right side
    399,566.03x = 88,153,374,419.07
  5. Step 5: Solve for x
    x = 88,153,374,419.07/399,566.03
  6. Step 6: Final answer
    x = 220,622.79

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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.