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Finding the Fourth Proportional to 133,412.70, 200,050.65 and 39,906.30

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Solution

The fourth proportional to 133,412.70, 200,050.65 and 39,906.30 is: 59,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,412.70 : 200,050.65 = 39,906.30 : x
  2. Step 2: Convert to fraction form
    133,412.70/200,050.65 = 39,906.30/x
  3. Step 3: Cross multiply
    133,412.70x = 200,050.65 × 39,906.30
  4. Step 4: Simplify right side
    133,412.70x = 7,983,281,254.10
  5. Step 5: Solve for x
    x = 7,983,281,254.10/133,412.70
  6. Step 6: Final answer
    x = 59,838.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.