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Finding the Fourth Proportional to 307,033.56, 423,699.93 and 171,066.96

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Solution

The fourth proportional to 307,033.56, 423,699.93 and 171,066.96 is: 236,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,033.56 : 423,699.93 = 171,066.96 : x
  2. Step 2: Convert to fraction form
    307,033.56/423,699.93 = 171,066.96/x
  3. Step 3: Cross multiply
    307,033.56x = 423,699.93 × 171,066.96
  4. Step 4: Simplify right side
    307,033.56x = 72,481,058,977.31
  5. Step 5: Solve for x
    x = 72,481,058,977.31/307,033.56
  6. Step 6: Final answer
    x = 236,068.85

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1.5x scale

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.