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Finding the Fourth Proportional to 70,551.78, 97,376.49 and 42,273.87

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Solution

The fourth proportional to 70,551.78, 97,376.49 and 42,273.87 is: 58,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,551.78 : 97,376.49 = 42,273.87 : x
  2. Step 2: Convert to fraction form
    70,551.78/97,376.49 = 42,273.87/x
  3. Step 3: Cross multiply
    70,551.78x = 97,376.49 × 42,273.87
  4. Step 4: Simplify right side
    70,551.78x = 4,116,481,079.32
  5. Step 5: Solve for x
    x = 4,116,481,079.32/70,551.78
  6. Step 6: Final answer
    x = 58,346.95

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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.