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Finding the Fourth Proportional to 155,506.16, 214,664.72 and 104,548.46

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Solution

The fourth proportional to 155,506.16, 214,664.72 and 104,548.46 is: 144,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,506.16 : 214,664.72 = 104,548.46 : x
  2. Step 2: Convert to fraction form
    155,506.16/214,664.72 = 104,548.46/x
  3. Step 3: Cross multiply
    155,506.16x = 214,664.72 × 104,548.46
  4. Step 4: Simplify right side
    155,506.16x = 22,442,864,296.27
  5. Step 5: Solve for x
    x = 22,442,864,296.27/155,506.16
  6. Step 6: Final answer
    x = 144,321.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.