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Finding the Fourth Proportional to 365,897.90, 548,850.94 and 129,074.50

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Solution

The fourth proportional to 365,897.90, 548,850.94 and 129,074.50 is: 193,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,897.90 : 548,850.94 = 129,074.50 : x
  2. Step 2: Convert to fraction form
    365,897.90/548,850.94 = 129,074.50/x
  3. Step 3: Cross multiply
    365,897.90x = 548,850.94 × 129,074.50
  4. Step 4: Simplify right side
    365,897.90x = 70,842,657,910.78
  5. Step 5: Solve for x
    x = 70,842,657,910.78/365,897.90
  6. Step 6: Final answer
    x = 193,613.19

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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.