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Finding the Fourth Proportional to 188,903.81, 260,677.91 and 104,005.01

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Solution

The fourth proportional to 188,903.81, 260,677.91 and 104,005.01 is: 143,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,903.81 : 260,677.91 = 104,005.01 : x
  2. Step 2: Convert to fraction form
    188,903.81/260,677.91 = 104,005.01/x
  3. Step 3: Cross multiply
    188,903.81x = 260,677.91 × 104,005.01
  4. Step 4: Simplify right side
    188,903.81x = 27,111,808,116.30
  5. Step 5: Solve for x
    x = 27,111,808,116.30/188,903.81
  6. Step 6: Final answer
    x = 143,521.76

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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.