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Finding the Fourth Proportional to 440,725.86, 661,070.32 and 141,199.81

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Solution

The fourth proportional to 440,725.86, 661,070.32 and 141,199.81 is: 211,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,725.86 : 661,070.32 = 141,199.81 : x
  2. Step 2: Convert to fraction form
    440,725.86/661,070.32 = 141,199.81/x
  3. Step 3: Cross multiply
    440,725.86x = 661,070.32 × 141,199.81
  4. Step 4: Simplify right side
    440,725.86x = 93,343,003,580.64
  5. Step 5: Solve for x
    x = 93,343,003,580.64/440,725.86
  6. Step 6: Final answer
    x = 211,793.80

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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.