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Finding the Fourth Proportional to 366,096.21, 549,128.26 and 99,855.85

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Solution

The fourth proportional to 366,096.21, 549,128.26 and 99,855.85 is: 149,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,096.21 : 549,128.26 = 99,855.85 : x
  2. Step 2: Convert to fraction form
    366,096.21/549,128.26 = 99,855.85/x
  3. Step 3: Cross multiply
    366,096.21x = 549,128.26 × 99,855.85
  4. Step 4: Simplify right side
    366,096.21x = 54,833,666,166.04
  5. Step 5: Solve for x
    x = 54,833,666,166.04/366,096.21
  6. Step 6: Final answer
    x = 149,779.39

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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.