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Finding the Fourth Proportional to 366,316.32, 549,529.56 and 129,661.32

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Solution

The fourth proportional to 366,316.32, 549,529.56 and 129,661.32 is: 194,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,316.32 : 549,529.56 = 129,661.32 : x
  2. Step 2: Convert to fraction form
    366,316.32/549,529.56 = 129,661.32/x
  3. Step 3: Cross multiply
    366,316.32x = 549,529.56 × 129,661.32
  4. Step 4: Simplify right side
    366,316.32x = 71,252,728,128.62
  5. Step 5: Solve for x
    x = 71,252,728,128.62/366,316.32
  6. Step 6: Final answer
    x = 194,511.48

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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.