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Finding the Fourth Proportional to 355,847.34, 533,968.08 and 145,632.90

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Solution

The fourth proportional to 355,847.34, 533,968.08 and 145,632.90 is: 218,530.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,847.34 : 533,968.08 = 145,632.90 : x
  2. Step 2: Convert to fraction form
    355,847.34/533,968.08 = 145,632.90/x
  3. Step 3: Cross multiply
    355,847.34x = 533,968.08 × 145,632.90
  4. Step 4: Simplify right side
    355,847.34x = 77,763,319,997.83
  5. Step 5: Solve for x
    x = 77,763,319,997.83/355,847.34
  6. Step 6: Final answer
    x = 218,530.00

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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.