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Finding the Fourth Proportional to 189,681.37, 261,763.05 and 104,800.39

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Solution

The fourth proportional to 189,681.37, 261,763.05 and 104,800.39 is: 144,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,681.37 : 261,763.05 = 104,800.39 : x
  2. Step 2: Convert to fraction form
    189,681.37/261,763.05 = 104,800.39/x
  3. Step 3: Cross multiply
    189,681.37x = 261,763.05 × 104,800.39
  4. Step 4: Simplify right side
    189,681.37x = 27,432,869,727.59
  5. Step 5: Solve for x
    x = 27,432,869,727.59/189,681.37
  6. Step 6: Final answer
    x = 144,626.06

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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.