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Finding the Fourth Proportional to 101,502.92, 140,058.56 and 57,895.84

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Solution

The fourth proportional to 101,502.92, 140,058.56 and 57,895.84 is: 79,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,502.92 : 140,058.56 = 57,895.84 : x
  2. Step 2: Convert to fraction form
    101,502.92/140,058.56 = 57,895.84/x
  3. Step 3: Cross multiply
    101,502.92x = 140,058.56 × 57,895.84
  4. Step 4: Simplify right side
    101,502.92x = 8,108,807,980.39
  5. Step 5: Solve for x
    x = 8,108,807,980.39/101,502.92
  6. Step 6: Final answer
    x = 79,887.44

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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.