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Finding the Fourth Proportional to 163,525.69, 225,530.07 and 115,288.01

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Solution

The fourth proportional to 163,525.69, 225,530.07 and 115,288.01 is: 159,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,525.69 : 225,530.07 = 115,288.01 : x
  2. Step 2: Convert to fraction form
    163,525.69/225,530.07 = 115,288.01/x
  3. Step 3: Cross multiply
    163,525.69x = 225,530.07 × 115,288.01
  4. Step 4: Simplify right side
    163,525.69x = 26,000,912,899.71
  5. Step 5: Solve for x
    x = 26,000,912,899.71/163,525.69
  6. Step 6: Final answer
    x = 159,002.01

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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.