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Finding the Fourth Proportional to 70,058.10, 105,185.57 and 35,888.43

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Solution

The fourth proportional to 70,058.10, 105,185.57 and 35,888.43 is: 53,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,058.10 : 105,185.57 = 35,888.43 : x
  2. Step 2: Convert to fraction form
    70,058.10/105,185.57 = 35,888.43/x
  3. Step 3: Cross multiply
    70,058.10x = 105,185.57 × 35,888.43
  4. Step 4: Simplify right side
    70,058.10x = 3,774,944,786.51
  5. Step 5: Solve for x
    x = 3,774,944,786.51/70,058.10
  6. Step 6: Final answer
    x = 53,883.06

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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.