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Finding the Fourth Proportional to 103,059.48, 154,564.34 and 43,055.54

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Solution

The fourth proportional to 103,059.48, 154,564.34 and 43,055.54 is: 64,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,059.48 : 154,564.34 = 43,055.54 : x
  2. Step 2: Convert to fraction form
    103,059.48/154,564.34 = 43,055.54/x
  3. Step 3: Cross multiply
    103,059.48x = 154,564.34 × 43,055.54
  4. Step 4: Simplify right side
    103,059.48x = 6,654,850,350.62
  5. Step 5: Solve for x
    x = 6,654,850,350.62/103,059.48
  6. Step 6: Final answer
    x = 64,572.91

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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.