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Finding the Fourth Proportional to 305,598.76, 458,401.26 and 92,368.40

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Solution

The fourth proportional to 305,598.76, 458,401.26 and 92,368.40 is: 138,553.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,598.76 : 458,401.26 = 92,368.40 : x
  2. Step 2: Convert to fraction form
    305,598.76/458,401.26 = 92,368.40/x
  3. Step 3: Cross multiply
    305,598.76x = 458,401.26 × 92,368.40
  4. Step 4: Simplify right side
    305,598.76x = 42,341,790,944.18
  5. Step 5: Solve for x
    x = 42,341,790,944.18/305,598.76
  6. Step 6: Final answer
    x = 138,553.54

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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.