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Finding the Fourth Proportional to 440,659.96, 661,032.90 and 141,065.08

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Solution

The fourth proportional to 440,659.96, 661,032.90 and 141,065.08 is: 211,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,659.96 : 661,032.90 = 141,065.08 : x
  2. Step 2: Convert to fraction form
    440,659.96/661,032.90 = 141,065.08/x
  3. Step 3: Cross multiply
    440,659.96x = 661,032.90 × 141,065.08
  4. Step 4: Simplify right side
    440,659.96x = 93,248,658,921.13
  5. Step 5: Solve for x
    x = 93,248,658,921.13/440,659.96
  6. Step 6: Final answer
    x = 211,611.37

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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.