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Finding the Fourth Proportional to 189,693.67, 261,776.73 and 104,810.13

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Solution

The fourth proportional to 189,693.67, 261,776.73 and 104,810.13 is: 144,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,693.67 : 261,776.73 = 104,810.13 : x
  2. Step 2: Convert to fraction form
    189,693.67/261,776.73 = 104,810.13/x
  3. Step 3: Cross multiply
    189,693.67x = 261,776.73 × 104,810.13
  4. Step 4: Simplify right side
    189,693.67x = 27,436,853,102.27
  5. Step 5: Solve for x
    x = 27,436,853,102.27/189,693.67
  6. Step 6: Final answer
    x = 144,637.68

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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.