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Finding the Fourth Proportional to 303,740.70, 455,611.05 and 162,023.10

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Solution

The fourth proportional to 303,740.70, 455,611.05 and 162,023.10 is: 243,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,740.70 : 455,611.05 = 162,023.10 : x
  2. Step 2: Convert to fraction form
    303,740.70/455,611.05 = 162,023.10/x
  3. Step 3: Cross multiply
    303,740.70x = 455,611.05 × 162,023.10
  4. Step 4: Simplify right side
    303,740.70x = 73,819,514,715.26
  5. Step 5: Solve for x
    x = 73,819,514,715.26/303,740.70
  6. Step 6: Final answer
    x = 243,034.65

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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.