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Finding the Fourth Proportional to 189,754.58, 261,851.10 and 104,866.58

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Solution

The fourth proportional to 189,754.58, 261,851.10 and 104,866.58 is: 144,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,754.58 : 261,851.10 = 104,866.58 : x
  2. Step 2: Convert to fraction form
    189,754.58/261,851.10 = 104,866.58/x
  3. Step 3: Cross multiply
    189,754.58x = 261,851.10 × 104,866.58
  4. Step 4: Simplify right side
    189,754.58x = 27,459,429,587.62
  5. Step 5: Solve for x
    x = 27,459,429,587.62/189,754.58
  6. Step 6: Final answer
    x = 144,710.23

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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.