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Finding the Fourth Proportional to 70,757.97, 97,686.45 and 46,917.05

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Solution

The fourth proportional to 70,757.97, 97,686.45 and 46,917.05 is: 64,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,757.97 : 97,686.45 = 46,917.05 : x
  2. Step 2: Convert to fraction form
    70,757.97/97,686.45 = 46,917.05/x
  3. Step 3: Cross multiply
    70,757.97x = 97,686.45 × 46,917.05
  4. Step 4: Simplify right side
    70,757.97x = 4,583,159,570.54
  5. Step 5: Solve for x
    x = 4,583,159,570.54/70,757.97
  6. Step 6: Final answer
    x = 64,772.34

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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.