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Finding the Fourth Proportional to 133,262.20, 183,903.78 and 75,914.20

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Solution

The fourth proportional to 133,262.20, 183,903.78 and 75,914.20 is: 104,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,262.20 : 183,903.78 = 75,914.20 : x
  2. Step 2: Convert to fraction form
    133,262.20/183,903.78 = 75,914.20/x
  3. Step 3: Cross multiply
    133,262.20x = 183,903.78 × 75,914.20
  4. Step 4: Simplify right side
    133,262.20x = 13,960,908,335.68
  5. Step 5: Solve for x
    x = 13,960,908,335.68/133,262.20
  6. Step 6: Final answer
    x = 104,762.70

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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.