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Finding the Fourth Proportional to 617,810.13, 926,688.08 and 168,529.51

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Solution

The fourth proportional to 617,810.13, 926,688.08 and 168,529.51 is: 252,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,810.13 : 926,688.08 = 168,529.51 : x
  2. Step 2: Convert to fraction form
    617,810.13/926,688.08 = 168,529.51/x
  3. Step 3: Cross multiply
    617,810.13x = 926,688.08 × 168,529.51
  4. Step 4: Simplify right side
    617,810.13x = 156,174,286,149.84
  5. Step 5: Solve for x
    x = 156,174,286,149.84/617,810.13
  6. Step 6: Final answer
    x = 252,786.87

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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.