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Finding the Fourth Proportional to 124,011.60, 185,812.60 and 105,579.60

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Solution

The fourth proportional to 124,011.60, 185,812.60 and 105,579.60 is: 158,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,011.60 : 185,812.60 = 105,579.60 : x
  2. Step 2: Convert to fraction form
    124,011.60/185,812.60 = 105,579.60/x
  3. Step 3: Cross multiply
    124,011.60x = 185,812.60 × 105,579.60
  4. Step 4: Simplify right side
    124,011.60x = 19,618,019,982.96
  5. Step 5: Solve for x
    x = 19,618,019,982.96/124,011.60
  6. Step 6: Final answer
    x = 158,195.04

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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.