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Finding the Fourth Proportional to 70,849.96, 97,781.88 and 40,634.63

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Solution

The fourth proportional to 70,849.96, 97,781.88 and 40,634.63 is: 56,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,849.96 : 97,781.88 = 40,634.63 : x
  2. Step 2: Convert to fraction form
    70,849.96/97,781.88 = 40,634.63/x
  3. Step 3: Cross multiply
    70,849.96x = 97,781.88 × 40,634.63
  4. Step 4: Simplify right side
    70,849.96x = 3,973,330,544.66
  5. Step 5: Solve for x
    x = 3,973,330,544.66/70,849.96
  6. Step 6: Final answer
    x = 56,080.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.