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Finding the Fourth Proportional to 317,009.22, 475,586.73 and 103,784.01

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Solution

The fourth proportional to 317,009.22, 475,586.73 and 103,784.01 is: 155,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,009.22 : 475,586.73 = 103,784.01 : x
  2. Step 2: Convert to fraction form
    317,009.22/475,586.73 = 103,784.01/x
  3. Step 3: Cross multiply
    317,009.22x = 475,586.73 × 103,784.01
  4. Step 4: Simplify right side
    317,009.22x = 49,358,297,942.19
  5. Step 5: Solve for x
    x = 49,358,297,942.19/317,009.22
  6. Step 6: Final answer
    x = 155,699.88

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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.