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Finding the Fourth Proportional to 60,928.82, 91,317.13 and 42,058.51

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Solution

The fourth proportional to 60,928.82, 91,317.13 and 42,058.51 is: 63,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,928.82 : 91,317.13 = 42,058.51 : x
  2. Step 2: Convert to fraction form
    60,928.82/91,317.13 = 42,058.51/x
  3. Step 3: Cross multiply
    60,928.82x = 91,317.13 × 42,058.51
  4. Step 4: Simplify right side
    60,928.82x = 3,840,662,091.84
  5. Step 5: Solve for x
    x = 3,840,662,091.84/60,928.82
  6. Step 6: Final answer
    x = 63,035.22

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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.