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Finding the Fourth Proportional to 91,407.17, 137,102.11 and 29,066.69

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Solution

The fourth proportional to 91,407.17, 137,102.11 and 29,066.69 is: 43,597.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,407.17 : 137,102.11 = 29,066.69 : x
  2. Step 2: Convert to fraction form
    91,407.17/137,102.11 = 29,066.69/x
  3. Step 3: Cross multiply
    91,407.17x = 137,102.11 × 29,066.69
  4. Step 4: Simplify right side
    91,407.17x = 3,985,104,529.72
  5. Step 5: Solve for x
    x = 3,985,104,529.72/91,407.17
  6. Step 6: Final answer
    x = 43,597.29

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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.