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Finding the Fourth Proportional to 111,530.29, 153,058.06 and 110,742.97

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Solution

The fourth proportional to 111,530.29, 153,058.06 and 110,742.97 is: 151,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,530.29 : 153,058.06 = 110,742.97 : x
  2. Step 2: Convert to fraction form
    111,530.29/153,058.06 = 110,742.97/x
  3. Step 3: Cross multiply
    111,530.29x = 153,058.06 × 110,742.97
  4. Step 4: Simplify right side
    111,530.29x = 16,950,104,423.70
  5. Step 5: Solve for x
    x = 16,950,104,423.70/111,530.29
  6. Step 6: Final answer
    x = 151,977.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.