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Finding the Fourth Proportional to 545,070.92, 817,606.60 and 245,201.22

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Solution

The fourth proportional to 545,070.92, 817,606.60 and 245,201.22 is: 367,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,070.92 : 817,606.60 = 245,201.22 : x
  2. Step 2: Convert to fraction form
    545,070.92/817,606.60 = 245,201.22/x
  3. Step 3: Cross multiply
    545,070.92x = 817,606.60 × 245,201.22
  4. Step 4: Simplify right side
    545,070.92x = 200,478,135,800.05
  5. Step 5: Solve for x
    x = 200,478,135,800.05/545,070.92
  6. Step 6: Final answer
    x = 367,801.93

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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.