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Finding the Fourth Proportional to 133,417.08, 200,128.88 and 52,360.68

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Solution

The fourth proportional to 133,417.08, 200,128.88 and 52,360.68 is: 78,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,417.08 : 200,128.88 = 52,360.68 : x
  2. Step 2: Convert to fraction form
    133,417.08/200,128.88 = 52,360.68/x
  3. Step 3: Cross multiply
    133,417.08x = 200,128.88 × 52,360.68
  4. Step 4: Simplify right side
    133,417.08x = 10,478,883,982.64
  5. Step 5: Solve for x
    x = 10,478,883,982.64/133,417.08
  6. Step 6: Final answer
    x = 78,542.30

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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.