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Finding the Fourth Proportional to 245,707.02, 339,203.70 and 165,555.90

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Solution

The fourth proportional to 245,707.02, 339,203.70 and 165,555.90 is: 228,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,707.02 : 339,203.70 = 165,555.90 : x
  2. Step 2: Convert to fraction form
    245,707.02/339,203.70 = 165,555.90/x
  3. Step 3: Cross multiply
    245,707.02x = 339,203.70 × 165,555.90
  4. Step 4: Simplify right side
    245,707.02x = 56,157,173,836.83
  5. Step 5: Solve for x
    x = 56,157,173,836.83/245,707.02
  6. Step 6: Final answer
    x = 228,553.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.