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Finding the Fourth Proportional to 361,949.76, 542,924.28 and 247,985.28

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Solution

The fourth proportional to 361,949.76, 542,924.28 and 247,985.28 is: 371,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,949.76 : 542,924.28 = 247,985.28 : x
  2. Step 2: Convert to fraction form
    361,949.76/542,924.28 = 247,985.28/x
  3. Step 3: Cross multiply
    361,949.76x = 542,924.28 × 247,985.28
  4. Step 4: Simplify right side
    361,949.76x = 134,637,229,594.60
  5. Step 5: Solve for x
    x = 134,637,229,594.60/361,949.76
  6. Step 6: Final answer
    x = 371,977.67

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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.