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Finding the Fourth Proportional to 192,060.30, 288,090.45 and 97,581.90

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Solution

The fourth proportional to 192,060.30, 288,090.45 and 97,581.90 is: 146,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,060.30 : 288,090.45 = 97,581.90 : x
  2. Step 2: Convert to fraction form
    192,060.30/288,090.45 = 97,581.90/x
  3. Step 3: Cross multiply
    192,060.30x = 288,090.45 × 97,581.90
  4. Step 4: Simplify right side
    192,060.30x = 28,112,413,482.86
  5. Step 5: Solve for x
    x = 28,112,413,482.86/192,060.30
  6. Step 6: Final answer
    x = 146,372.85

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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.