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Finding the Fourth Proportional to 303,956.10, 455,890.95 and 93,615.30

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Solution

The fourth proportional to 303,956.10, 455,890.95 and 93,615.30 is: 140,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,956.10 : 455,890.95 = 93,615.30 : x
  2. Step 2: Convert to fraction form
    303,956.10/455,890.95 = 93,615.30/x
  3. Step 3: Cross multiply
    303,956.10x = 455,890.95 × 93,615.30
  4. Step 4: Simplify right side
    303,956.10x = 42,678,368,051.54
  5. Step 5: Solve for x
    x = 42,678,368,051.54/303,956.10
  6. Step 6: Final answer
    x = 140,409.64

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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.