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Finding the Fourth Proportional to 311,516.90, 467,102.55 and 124,316.90

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Solution

The fourth proportional to 311,516.90, 467,102.55 and 124,316.90 is: 186,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,516.90 : 467,102.55 = 124,316.90 : x
  2. Step 2: Convert to fraction form
    311,516.90/467,102.55 = 124,316.90/x
  3. Step 3: Cross multiply
    311,516.90x = 467,102.55 × 124,316.90
  4. Step 4: Simplify right side
    311,516.90x = 58,068,740,998.10
  5. Step 5: Solve for x
    x = 58,068,740,998.10/311,516.90
  6. Step 6: Final answer
    x = 186,406.39

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1.5x scale

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.