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Finding the Fourth Proportional to 295,478.01, 443,355.46 and 145,636.58

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Solution

The fourth proportional to 295,478.01, 443,355.46 and 145,636.58 is: 218,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,478.01 : 443,355.46 = 145,636.58 : x
  2. Step 2: Convert to fraction form
    295,478.01/443,355.46 = 145,636.58/x
  3. Step 3: Cross multiply
    295,478.01x = 443,355.46 × 145,636.58
  4. Step 4: Simplify right side
    295,478.01x = 64,568,773,663.02
  5. Step 5: Solve for x
    x = 64,568,773,663.02/295,478.01
  6. Step 6: Final answer
    x = 218,523.11

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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.