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Finding the Fourth Proportional to 303,989.10, 455,940.45 and 93,648.30

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Solution

The fourth proportional to 303,989.10, 455,940.45 and 93,648.30 is: 140,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,989.10 : 455,940.45 = 93,648.30 : x
  2. Step 2: Convert to fraction form
    303,989.10/455,940.45 = 93,648.30/x
  3. Step 3: Cross multiply
    303,989.10x = 455,940.45 × 93,648.30
  4. Step 4: Simplify right side
    303,989.10x = 42,698,048,043.74
  5. Step 5: Solve for x
    x = 42,698,048,043.74/303,989.10
  6. Step 6: Final answer
    x = 140,459.14

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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.