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Finding the Fourth Proportional to 161,699.32, 223,131.81 and 92,791.81

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Solution

The fourth proportional to 161,699.32, 223,131.81 and 92,791.81 is: 128,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,699.32 : 223,131.81 = 92,791.81 : x
  2. Step 2: Convert to fraction form
    161,699.32/223,131.81 = 92,791.81/x
  3. Step 3: Cross multiply
    161,699.32x = 223,131.81 × 92,791.81
  4. Step 4: Simplify right side
    161,699.32x = 20,704,804,518.48
  5. Step 5: Solve for x
    x = 20,704,804,518.48/161,699.32
  6. Step 6: Final answer
    x = 128,045.09

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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.