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Finding the Fourth Proportional to 357,486.72, 536,239.80 and 108,168.72

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Solution

The fourth proportional to 357,486.72, 536,239.80 and 108,168.72 is: 162,256.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,486.72 : 536,239.80 = 108,168.72 : x
  2. Step 2: Convert to fraction form
    357,486.72/536,239.80 = 108,168.72/x
  3. Step 3: Cross multiply
    357,486.72x = 536,239.80 × 108,168.72
  4. Step 4: Simplify right side
    357,486.72x = 58,004,372,779.06
  5. Step 5: Solve for x
    x = 58,004,372,779.06/357,486.72
  6. Step 6: Final answer
    x = 162,256.02

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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.